BBC:

Umar Farouk Abdulmutallab, 24, told a judge he was admitting all eight counts against him, including terrorism and attempted murder.
Abdulmutallab was badly burned when a bomb sewn into his underwear failed to detonate fully, prosecutors say.
Almost 300 people were on the flight from Amsterdam to Detroit.
Abdulmutallab will be sentenced on 12 January 2012 but the BBC's Jonny Dymond, in Washington, says this is now a formality - Abdulmutallab will spend the rest of his life in prison.
Al-Qaeda links
US Federal Judge Nancy Edmunds verified that Abdulmutallab understood his right to silence before asking him if he wished to make a plea.