By Zeeshan Haider
ISLAMABAD | Sun Dec 26, 2010 11:58am EST
ISLAMABAD (Reuters) – A woman covered in a head-to-foot burqa carried out a suicide bombing that killed more than 40 people in Pakistan, government officials said on Sunday, adding to security challenges confronting the U.S. ally.
Any increased use of women as bombers may complicate efforts by Pakistani security forces to stem a spreading wave of Islamist suicide attacks because it is harder to spot and search burqa-clad attackers in conservative tribal society.