Boston man accused of bomb plot in Washington

Law  enforcement  officials accused a 26-year-old man from a town west of Boston of plotting to blow up the Pentagon and the Capitol Building with a remote-controlled aircraft fitted with explosives. Officials said Rezwan Ferdaus, who has a physics degree from Northeastern University, has also provided resources to Al Qaida to aid in attacks on American soldiers overseas. Abby Goodnough  of  The New York Times  reports on the latest developments. Gordon Correra, security correspondent for the BBC, reports on how the FBI runs its undercover operations.