In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu (R) and U.S. President Barack Obama visit the shrine of the book on March 21, 2013 in Jerusalem, Israel. (Photo by Ben Gershom/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu (R) and U.S. President Barack Obama visit the shrine of the book on March 21, 2013 in Jerusalem, Israel. (Photo by Ben Gershom/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu (R) and U.S. President Barack Obama visit the shrine of the book on March 21, 2013 in Jerusalem, Israel. (Photo by Ben Gershom/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama greets Theresa Hannigan from New York, who is wearing a ReWalk bionic walking assistance system, at an Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Debbie Hill-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama and Israeli Prime Minister Benjamin Netanyahu view a robotic snake used in search and rescue at an Israeli technology exhibition in the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Debbie Hill-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama and Israeli Prime Minister Benjamin Netanyahu talk to a man wearing a net to check brain activity at an Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Debbie Hill-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama and Israeli Prime Minister Benjamin Netanyahu view an Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Debbie Hill-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama and Israeli Prime Minister Benjamin Netanyahu view an Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Debbie Hill-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu (C) and U.S. President Barack Obama visit the Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Kobi Gideon/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu and U.S. President Barack Obama visit the Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Kobi Gideon/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu (R) and U.S. President Barack Obama speak with Israeli President Shimon Peres as they visit the Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Kobi Gideon/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu (L) and U.S. President Barack Obama visit the Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Kobi Gideon/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu (2nd R) and U.S. President Barack Obama visit the Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Kobi Gideon/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu and U.S. President Barack Obama visit the Israeli technology exhibition at the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Kobi Gideon/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama views a robotic snake used in search and rescue at an Israeli technology exhibition in the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Debbie Hill-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama views an alternative fuel vehicle at an Israeli technology exhibition in the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Debbie Hill-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama and Israeli Prime Minister Benjamin Netanyahu view an alternative fuel vehicle at an Israeli technology exhibition in the Israel Museum on March 21, 2013 in Jerusalem, Israel. (Photo by Debbie Hill-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
In this handout image supplied by the Government Press Office of Israel (GPO) Israeli Prime Minister Benjamin Netanyahu (C, R) hosts U.S. President Barack Obama at a dinner on March 21, 2013 in Jerusalem, Israel. (Photo by Avi Ohayon/GPO via Getty Images)
President Obama's Official Visit To Israel And The West Bank
Greenpeace activists hang a banner saying 'Obama Stop Arctic drilling' on the cables of Jerusalem's Chords Bridge on March 21, 2013 in Jerusalem, Israel. (Photo by Lior Mizrahi/Getty Images)
President Obama's Official Visit To Israel And The West Bank
Palestinians protest as U.S. President Barack Obama and Palestinians Authority President Mahmud Abbas meet March 21, 2013 in Ramallah, the West Bank. (Photo by Ilia Yefimovich/Getty images)
President Obama's Official Visit To Israel And The West Bank
Palestinian police stand guard on a main road as U.S. President Barack Obama and Palestinians Authority President Mahmud Abbas meet March 21, 2013 in Ramallah, the West Bank. (Photo by Ilia Yefimovich/Getty images)
President Obama's Official Visit To Israel And The West Bank
A Black Hawk helicopter flies before U.S. President Barack Obama and Palestinians Authority President Mahmud Abbas meet March 21, 2013 in Ramallah, the West Bank. (Photo by Ilia Yefimovich/Getty images)
President Obama's Official Visit To Israel And The West Bank
Palestinians protester arrested during a demonstration as U.S. President Barack Obama and Palestinians Authority President Mahmud Abbas meet March 21, 2013 in Ramallah, the West Bank. (Photo by Ilia Yefimovich/Getty images)
President Obama's Official Visit To Israel And The West Bank
Palestinians protest as U.S. President Barack Obama and Palestinians Authority President Mahmud Abbas meet March 21, 2013 in Ramallah, the West Bank. (Photo by Ilia Yefimovich/Getty images)
President Obama's Official Visit To Israel And The West Bank
Palestinian police stand guard on a main road as U.S. President Barack Obama and Palestinians Authority President Mahmud Abbas meet March 21, 2013 in Ramallah, the West Bank. (Photo by Ilia Yefimovich/Getty images)
President Obama's Official Visit To Israel And The West Bank
Palestinians protest as U.S. President Barack Obama and Palestinians Authority President Mahmud Abbas meet March 21, 2013 in Ramallah, the West Bank. (Photo by Ilia Yefimovich/Getty images)
President Obama's Official Visit To Israel And The West Bank
Palestinians protest as U.S. President Barack Obama and Palestinians Authority President Mahmud Abbas meet March 21, 2013 in Ramallah, the West Bank. (Photo by Ilia Yefimovich/Getty images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama waves to the crowed at the end of his speech to Israeli students on March 21, 2013 in Jerusalem, Israel. (Photo by Uriel Sinai/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama (R) and Palestinian Prime Minister Salam Fayad visit Al Bera Youth Center March 21, 2013 in Ramallah, the West Bank. (Photo by Alaa Badarneh-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama (C) is welcomed by Palestinian youths during his visit to Al Bera Youth Center March 21, 2013 in Ramallah, the West Bank. (Photo by Alaa Badarneh-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama (C) visits Al Bera Youth Center March 21, 2013 in Ramallah, the West Bank. (Photo by Alaa Badarneh-Pool/Getty Images)
President Obama's Official Visit To Israel And The West Bank
U.S. President Barack Obama shakes hands with Palestinian children during his visit to Al Bera Youth Center March 21, 2013 in Ramallah, the West Bank. (Photo by Alaa Badarneh-Pool/Getty Images)
