Pakistan, Jan. 26 -- It was supposed to be a night of celebration in Dera Ismail Khan. Families gathered for a wedding at a peace committee leader's home when a thunderous blast tore through the festivities. Seven people lay dead, including the local peace committee head, and many others were wounded. The suicide bomber who infiltrated the gathering was later identified as 21-year-old Abdul Rehman, an Afghan national, said to be indoctrinated by extremist propaganda in his formative years. This carnage in DI Khan is part of a deadly pattern. In fact, all ten major terrorist incidents in Pakistan last year involved Afghan nationals as perpetrators. Pakistan has repeatedly maintained that extremist groups, particularly the Tehreek-e-Taliban...