State's Rights?

On Thursday the Post reported that the Republicans in the House passed a bill requiring states to recognized the concealed weapons laws of other states.  When someone enters their state from a state with less restrictive laws they must allow that person to follow their home state's law.  These are the same people who bray about "state's rights" and the horrors of the federal government taking over the power of the state's.  I guess state's rights don't matter when it is something the Republicans don't like such as trying to protect people from crazies carrying guns.