The investigation

• Christmas bomb suspect talking
• Intelligence chiefs: Terror attempts on U.S. 'certain'
• Al-Awlaki's father asks Obama to end manhunt
• Prosecutors: Suspect waived right to counsel
• Second man was tracked on Detroit flight
• Report: New bin Laden tape emerges
• Airplane bomb suspect pleads not guilty
• Senators hears testimony on alleged plot
• Poll: Most say Obama can handle terror threat
• Yemen university in focus after jet incident
• Al-Awlaki's father: My son is 'not Osama bin Laden'
• U.S. failed to confirm suspect's visa

Details of the case

Passengers tell their stories

• Key dates linked to Nigerian terror suspect

Security, travel repercussions

• Map: Travel threats and enhanced screening
• Homeland Security seeks help on flights
• U.S. lowers threshold for no-fly lists
• TSA nixes subpoenas of travel bloggers
• Delta CEO pledges better security
• Air marshals back in spotlight
• Feinstein wants reversal of policy on no-fly list
• TSA maintains high security at airports
• Critic: Body scan a 'virtual strip search'
• 150 more full-body scanners to go in U.S. airports
• White House, Cheney spar over terror response
• Dogs key to bomb detection at airports?

Opinion

• Airport screening for 'Flying while Muslim'
• How the Israelis do airport security
• Finally, a president who takes responsibility
• Comment: Will terror alert divert Obama?
• 'Systemic failure' is no excuse
• Stop the panic on air security
• The case for firing Janet Napolitano
• Washington over-reacting to air scare
• Why profiling doesn't work
• Screening must include religion, ethnicity
• Blame game won't stop terrorism
• A 'lucky to be alive' passenger's story

About the suspect

• Friend: Terror suspect's zeal deepened in London
• Suspect, radical cleric may be linked
• Suspect attended Houston 'knowledge fest'
• Hatred simmers in suspect's homeland
• 'Farouk1986' appears to be airline terror suspect
• AbdulMutallab's hometown stunned
• Pal: What happened to the AbdulMutallab I knew?
• Yemenis question suspect's classmates
• Suspect's father met with CIA
• Father warned authorities
• Official: Dad's warning of son wasn't specific
• Air terror suspect was in database, not on watch list

Flight 253 video

AbdulMutallab 'not guilty' plea

'The buck stops with me'

Security in the air

Attack was a 'systemic failure'

Obama: 'Failed to connect dots'

Brennan: 'We didn't follow up'

Obama not urgent enough?

Obama meets with security team

Bombing suspect had 'promise'

Yemen 101

Timely response to terror?

Alleged bomber radicalized?

Ethnic profiling terrorists?

Who dropped the ball?

Was bomb plot retaliation?

Security challenge in Yemen