Explain how FISA works for dummies? I've been following some of the news surrounding FISA abuse as much as possible when I have the time, but to be honest I still don't understand this court system fully to recognize the aspects that were actually abused.  Can someone please explain how FISA's original purpose and which part of the Obama admin's actions abused it?  How is FISA even supposed to add value to our nation? Does it target foreign, or domestic criminals? I want to be able to share more with my coworkers and friends, but this FISA stuff is a part of the Obama scandals that I've never fully understood. To be honest, I don't know anyone that even knows what FISA is. If I could fully understand it maybe I can help others to understand it as well.