NEW : President Obama says the ` ` outrageous terrorist attack '' is ` ` an insult ... to all humanity '' The Pakistani Taliban claimed responsibility for the blast , which killed at least 43 people . A Taliban spokesman said over 300 people were passing through Pakistan to get food .
NEW : President Obama says the `` outrageous terrorist attack '' is `` an affront ... to all humanity '' The Pakistani Taliban claims responsibility for the blast , which killed at least 43 people . A U.N. spokesman says over 300 people were going through security to get food .