The Federal Circuit just held that the Takings Clause generally doesn't apply to takings of foreign property owned by foreign citizens who have no connection to the U.S. In the process, the court of appeals also canvassed the precedents on the broader question, which can also involve the Fourth Amendment, the criminal procedure provisions, and other Bill of Rights clauses.

Much worth reading, and should be pretty readable even to nonlawyers. Thanks to How Appealing for the pointer.