DANA HUGHES and KIRIT RADIA
ABC News 
Friday, Jan 1st, 2010
The accused “underwear bomber” made a dramatic final call to his father that he found so alarming, the father approached Nigerian officials who took him directly to the CIA’s station chief in the Nigerian capital, sources told ABC News.
Current and former officials of the Nigerian government, including a source close to the suspect’s family, say Umar Farouk Abdulmutallab , 23, called his father from Yemen with the warning that it would be his last contact.
It has previously been reported that the man’s father, prominent Nigerian banker Alhaji Umaru Mutallab, went to Nigerian and American officials Nov. 19 to warn them that his son had been radicalized by Islamic militants in Yemen.