What Does The Toomey/Manchin Amendment Mean?

Shall Not Be Questioned tries to make sense of the language.  As the analysis makes clear, some of the more outlandish claims for it are wrong...but other parts are less than clear as to what they do.  Overall, it is apparent that this is a face-saving measure for the gun control crowd, giving them a tiny fraction of what they wanted, which will take away some of their talking points about the "gun show loophole," but giving us some  improvements on current law.