Najibullah Zazi, an Afghan immigrant arrested Sept. 20 in connection to a plot to bomb targets in New York City, pleaded not guilty Tuesday to terrorism conspiracy charges. Dina Temple-Raston of NPR details the case against Zazi.

In other news, an Afghan immigrant was indicted Thursday in New York for allegedly plotting to detonate bombs in the U.S., and Massachusetts Gov. Deval Patrick named Paul Kirk to fill the senate seat left vacant by the death of…

Judy Woodruff speaks with journalists about the arrests of three terrorism suspects over the weekend related to an alleged plot to bomb American targets.