The volunteers were killed Sunday in bin Laden 's . Vaccination programs have been targeted by Pakistani militants . Abbottabad had 58 cases of polio in Sunday . Pakistan is one of only three countries where polio remains endemic , with 58 cases reported in 2012 , according to the Global Polio Eradication Initiative . The CIA used a fake vaccine program to verify Khyber Pakhtunkhwa location .
The volunteers were killed Sunday in bin Laden 's . Vaccination programs have been targeted by Pakistani militants . Abbottabad had 58 cases of polio in Sunday . The CIA used a fake vaccine program to verify Khyber Pakhtunkhwa location .