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CBS News senior national security correspondent David Martin reflects on the 20 years since 9/11

Name: CBS News senior national security correspondent David Martin reflects on the 20 years since 9/11
Uploaded: 2021-09-05T19:38:02-0400
Duration: 3 min 40 s
Description: "CBS News’ senior national security correspondent David Martin was at the Pentagon on September 11, 2001. Since then, he and his longtime producer, Mary Walsh, have reported every development in the War on Terror — and tonight, they look back.

"CBS News’ senior national security correspondent David Martin was at the Pentagon on September 11, 2001. Since then, he and his longtime producer, Mary Walsh, have reported every development in the War on Terror — and tonight, they look back.