Obama: Congress Not Approving Increased Background Checks 'Unimaginable'

Axelrod on Obama's Thoughts: Tax Day on List of Likely Reasons for Bombing

Iran Says It Test-Fired New Missile

Hagel: Bombing in Boston a 'Cruel Act of Terror'

Soldier Faces 16 Years in Prison for Espionage

Illegal Immigration’s Impact

New Jersey town struggles under weight of illegal immigration

Lieberman Praises Law Enforcement in Aftermath of Boston Marathon Bombing

New York Stock Exchange Observes Moment of Silence for Boston Bombing Victims

King: Hopefully Attack Helps Some in Congress Realize 'The War on Terror Is Far from Over'

'We can't cut back on Homeland Security funding'

King: Received Two Top Secret Briefings Last Week, No Intel on Boston Attack