This file photo shows people expressing condolences in connection with American missionary Martin Burnham and Filipino nurse Ediborah Yap's death in front of the US embassy, in 2002. Two Al ... more 

This file photo shows people expressing condolences in connection with American missionary Martin Burnham and Filipino nurse Ediborah Yap's death in front of the US embassy, in 2002. Two Al Qaeda-linked militants have been arrested in the Philippines over a 2001 kidnapping of a group of tourists in which two American hostages were later murdered less