President Bush wrapped up his European tour Tuesday by praising the people of Georgia for inspiring democratic reform around the world.
Mr. Bush told tens of thousands of people gathered in Tblisi that the 2003 revolution that ushered in Georgian President Mikhail Saakashvili set an example for democracy movements in Lebanon, Ukraine, Iraq and Kyrgyzstan.
Meanwhile, U.S. Secret Service officials say they are investigating reports that a hand grenade was thrown toward the stage where Mr. Bush was speaking.
U.S. networks, citing Georgian authorities, say the device was thrown within 30 meters of the stage, but did not explode. They say the Secret Service was not informed of the incident until hours after Mr. Bush's speech.
After Tuesday's address, Mr. Bush headed home to Washington. Georgia was his last stop on a four-nation tour to mark the 60th anniversary of the end of World War Two in Europe.