CIA fake vaccination campaign in Pakistan

During the manhunt for Osama bin Laden, the CIA ran a covert operation utilizing a fake hepatitis vaccine program in Pakistan to illicitly collect blood samples to confirm the presence of bin Laden or his family. The CIA allegedly recruited physician Shakil Afridi to administer hepatitis B vaccines, and used the collected DNA to compare with the DNA of bin Laden's sister, who died in Boston in 2010.

Source: Wikipedia — CIA fake vaccination campaign in Pakistan (CC BY-SA 4.0)