NYPD officers stand guard near One World Trade Center in lower Manhattan on Nov. 24, 2015. Following the terrorist attacks in Paris, security in New York City has been heightened throughout the metropolitan area as experts try to determine the nature of threats from ISIS and other Jihadist groups. (credit: Spencer Platt/Getty Images)
New York City Increases Security Amid Global Terror Alerts
NYPD officers keep guard near One World Trade Center in lower Manhattan on Nov. 24, 2015. Following the terrorist attacks in Paris, security in New York City has been heightened throughout the metropolitan area as experts try to determine the nature of threats from ISIS and other Jihadist groups. (credit: Spencer Platt/Getty Images)
New York City Increases Security Amid Global Terror Alerts
NYPD officers keep guard near One World Trade Center in lower Manhattan on Nov. 24, 2015. Following the terrorist attacks in Paris, security in New York City has been heightened throughout the metropolitan area as experts try to determine the nature of threats from ISIS and other Jihadist groups. (credit: Spencer Platt/Getty Images)
New York City Increases Security Amid Global Terror Alerts
NYPD officers keep guard near One World Trade Center in lower Manhattan on Nov. 24, 2015 in New York City. Following the terrorist attacks in Paris, security in New York City has been heightened throughout the metropolitan area as experts try to determine the nature of threats from ISIS and other Jihadist groups. (credit: Spencer Platt/Getty Images)
New York City Increases Security Amid Global Terror Alerts
NYPD officers stand guard near One World Trade Center in lower Manhattan on Nov. 24, 2015. Following the terrorist attacks in Paris, security in New York City has been heightened throughout the metropolitan area as experts try to determine the nature of threats from ISIS and other Jihadist groups. (credit: Spencer Platt/Getty Images)
New York City Increases Security Amid Global Terror Alerts
NYPD officers stand guard near One World Trade Center in lower Manhattan on Nov. 24, 2015. Following the terrorist attacks in Paris, security in New York City has been heightened throughout the metropolitan area as experts try to determine the nature of threats from ISIS and other Jihadist groups. (credit: Spencer Platt/Getty Images)
New York City Increases Security Amid Global Terror Alerts
An NYPD vehicle is seen near One World Trade Center in lower Manhattan on Nov. 24, 2015. Following the terrorist attacks in Paris, security in New York City has been heightened throughout the metropolitan area as experts try to determine the nature of threats from ISIS and other Jihadist groups. (credit: Spencer Platt/Getty Images)
New York City Increases Security Amid Global Terror Alerts
People walk through Grand Central Terminal in Manhattan on Nov. 24, 2015. Following the terrorist attacks in Paris, security in New York City has been heightened throughout the metropolitan area as experts try to determine the nature of threats from ISIS and other Jihadist groups. (credit: Spencer Platt/Getty Images)
New York City Increases Security Amid Global Terror Alerts
People walk through Grand Central Terminal in Manhattan on Nov. 24, 2015. Following the terrorist attacks in Paris, security in New York City has been heightened throughout the metropolitan area as experts try to determine the nature of threats from ISIS and other Jihadist groups. (credit: Spencer Platt/Getty Images)