Civil unrest in Yemen has enabled Al Qaeda in the Arabian Peninsula, which perpetrated the foiled underwear bomb plot, to expand its reach. US troops are arriving to train Yemeni soldiers.
The week after revelations by a double agent that Al Qaeda in the Arabian Peninsula (AQAP) was trying to take down a US airliner with an underwear bomb, the Pentagon announced that it has begun sending US troops into Yemen.
via US sends troops to Yemen as Al Qaeda gains ground – CSMonitor.com.