……The July 7, 2005, bombings were the first successful suicide bombings in Western Europe. Experts predict that these attacks will continue and possibly spread throughout Europe and the United States as Islamist extremists attempt to combat western influences and spread their ideology. This theory is supported by a June 2007 episode in which Islamic militants carried out a suicide bombing on the Glasgow airport one day after their failed attempt to detonate two car bombs in west London. The lack of a large radical population in the West remains an impediment to terrorist recruitment, though, which suggests that such attacks are unlikely to become commonplace.