U.S. troops stop short of the Egyptian government for firing on protesters . Gibbs : Change in Egypt has to begin now . And Pentagon spokesman Geoff Morrell said Defense Secretary Robert Gates spoke by phone with Egypt 's defense minister on Wednesday , their third conversation in recent days . A U.S. source says Mubarak might try to drive out the protesters . More than 1,900 U.S. citizens and family members have been injured .
U.S. troops stop short of the Egyptian government for firing on protesters . Gibbs : Change in Egypt has to begin now . A U.S. source says Mubarak might try to drive out the protesters . More than 1,900 U.S. citizens and family members have been injured .