Former Homeland Security Secretary: America is 'resilent'

  Tom Ridge joins The Daily Rundown to discuss security post 9/11, saying "there are many changes the public sees and many they don't." Ridge also comments on the safety concerns surrounding the explosion at a fertilizer plant in West Texas.

Investigators analyze video, photo from marathon scene

  Former Homeland Security Secretary Tom Ridge shares his evaluation of the investigation in Boston and talks about his thoughts on the role of the U.S. going forward.

Tom Ridge: Will take time to identify marathon perpetrators

  Fmr. Homeland Security Secy. Tom Ridge joins Morning Joe to discuss why he believes the two bombings at Monday's Boston Marathon were part of a terrorist attack from an unknown group or individual. Ridge also discusses the lack of intelligence the city had before the attack, and why combing through