The United States and Israel are planning what would be one of the harshest bombing campaigns to date against energy infrastructure targets in Iran, multiple sources told CBS News, with strikes possible throughout the weekend. There was some discussion about trying to conclude by the time financial markets open Monday because of concern about how the bombings will affect the U.S. and global economy, but an end point wasn't locked in. The Israelis have been notified and are coordinating with the United States, according to multiple U.S. sources. The president has yet to give the final go orders for the...