...How about we give California back to Mexico? ...

A better idea would be to make Mexico a State.

What is not so widely known is that British Museums are wont to steal from the British as well.

The Arnold Company made the first production line of Motor Cars in Britain. They loaned one to The Science Museum, from there it was sent to Scotland for safekeeping during WWII. Then they lost the paperwork and now refuse to return it to The Arnold Family.