U.S. President Barack Obama has sent a message to Prime Minister Benjamin Netanyahu demanding that Israel not surprise the U.S. with an Israeli military operation against Iran. The message was conveyed by a senior American official who met in Israel with Netanyahu, ministers and other senior officials. Earlier, Netanyahu's envoy visited Washington and met with National Security Adviser James Jones and with Secretary of State Hillary Clinton, and discussed the dialogue Obama has initiated with Tehran. The message from the American envoy to the prime minister reveals U.S. concern that Israel could lose patience and act against Iran. It is important to the Americans that they not be caught off guard and find themselves facing facts on the ground at the last minute. Obama did not wait for his White House meeting with Netanyahu, scheduled for next Monday, to deliver his message, but rather sent it ahead of time with his envoy.