Al Qaeda Link Probed

Al Qaeda investigated in Boston blasts

Ready to Help

How the U.S. Armed Forces Responded to the Boston Bombing

Illicit Lobbying

Report: Local health departments illegally used federal stimulus money to lobby

Gabriel Gomez Reflects On Barely Missing Boston Marathon Explosions

Former Dem. Rep. Accused of Ethics Violations

Colbert: 'There Are Things About S.C. That Fill Me With Despair'

Comedian slams home state at D.C. fundraiser for sister's congressional campaign

China Blames U.S. Military for Increasing Tensions in Asia-Pacific

Day Two

President Obama calls Boston bombing 'act of terror' as security concerns mount

Boehner: Capitol Flags Will Be Flown At Half-Staff

'Our Whole House Continues to Pray for the Victims and Their Families'

Obama Downplays Possibility N. Korea Has Capability to Launch Nuclear Missile