When did it become the jurisdiction of the FBI to investigate someone skinny-dipping in foreign country??
Public nudity is acceptable behavior in Israel. Why is this a matter for the the FBI?
The FBI is part of the Department of Justice. Perhaps they see a chance to help the Democratic Party.
Maybe Congressman Kevin Yoder was inspired by the example of St. Peter. According to John 21.7, Peter was naked while fishing in his fishing boat on the Sea of Galilee. (The word used in the Greek is gymnos which can mean "naked" but sometimes means "lightly clad.")