Informants aren't spies – they're essential FBI tools
- Written by Douglas M. Charles, Associate Professor of History, Pennsylvania State University
President Donald Trump tweeted this week that he would order the Department of Justice to investigate whether the FBI, under President Barack Obama, had “infiltrated or surveilled” his presidential campaign “for political purposes.”
Trump was referring to the FBI’s use of an...
Read more: Informants aren't spies – they're essential FBI tools

