Police secure the site of a suicide bombing in Khost, Afghanistan, on Monday, Oct. 1, 2012, after a bomber drove a motorcycle packed with explosives into a patrol of Afghan and international forces, killing more than a dozen people, including three NATO service members and their translator, officials said. (AP Photo/Nashanuddin Khan)

Photo by: Nashanuddin Khan

Police secure the site of a suicide bombing in Khost, Afghanistan, on Monday, Oct. 1, 2012, after a bomber drove a motorcycle packed with explosives into a patrol of Afghan and international forces, killing more than a dozen people, including three NATO service members and their translator, officials said. (AP Photo/Nashanuddin Khan)