How a CIA trap for Bin Laden led to vaccine hesitancy in Pakistan How a CIA trap for Bin Laden l... The CIA used a free vaccination campaign as a way to obtain samples of children's DNA that could be used to confirm Bin Laden's presence 1/1 The CIA used a free vaccination campaign as a way to obtain samples of children's DNA that could be used to confirm Bin Laden's presence A new study from a pair of European researchers has found a covert CIA plot to capture Osama Bin Laden in early 2011 led to significant drops in vaccination rates in Pakistan. The plot, using a fake vaccination campaign to capture children’s DNA samples in order to locate Bin Laden, was used in anti-vaccine propaganda in the following years.