"In June of '67 Ambassador Barbour was under tremendous diplomatic pressures during the "Six-Day War" and the "USS Liberty incident", in which a US SIGINT spy ship was attacked in error--according to the Israelis-- after being supposedly mistaken for an Egyptian ship whilst flying the American flag.Barbour also arrived at a time of extreme US sensitivity over Israel's burgeoning nuclear weapons development at Dimona in the Negev desert.