Abu Yahya al-Libi was 'gatekeeper' for al-Qaeda leaders
5 June 2012 Last updated at 22:23 BST
Senior al-Qaeda leader Abu Yahya al-Libi has been killed in a drone strike in Pakistan on Monday that killed 15 suspected militants, US officials have said.
Al-Libi functioned as a "gatekeeper" between al-Qaeda's leader and operatives in the field, Seth Jones, senior political scientist at the Rand Corporation tells the BBC's Jane O'Brien.
But Mr Jones warned that "there is very little history that precision strikes like this, by themselves, will defeat terrorist organisations".