FILE - In this Feb. 18, 1979 file photo, Palestinian Liberation Organization leader Yasser Arafat, right, kisses Ayatollah Ruhollah Khomeini, during a meeting in Tehran, Iran. Monday, Feb. 11, 2019 marks the 40th anniversary of the Islamic Revolution in Iran, which overthrew the caretaker government left behind by the cancer-stricken Shah Mohammad Reza Pahlavi, who had left the country only weeks earlier. (AP Photo, File)