The administration tried to strike a cautious balance Friday between backing a longtime U.S. ally and supporting pro-democracy demonstrators as violent protests against the regime in Egypt spiraled out of control. White House press secretary Robert Gibbs called for restraint in Egypt as protesters there continue to square off with government forces. Gibbs said President Obama still has not spoken with endangered Egyptian President Hosni Mubarak, who has ruled the country for nearly 30 years, but he said U.S. officials have been communicating to Egyptian officials American displeasure with the situation. "We have throughout the process, our ambassador and others...