"Is the FBI focused enough on the real bad guys?"

WaPo asks.

[A]t the same time the FBI was concluding that Tamerlan Tsarnaev was not a threat in 2011, it launched an elaborate sting operation in Boston against Rezwan Ferdaus, who eventually pleaded guilty to charges of plotting to attack the U.S. Capitol with a remote-controlled model airplane loaded with grenades. In his case as well as others, it’s not clear that a sometimes far-fetched plot would have gone forward without the encouragement and help of FBI informants.