President Bush returned to Washington late Tuesday after stopping in Georgia at the end of his historic four-nation tour of Europe.
In Tblisi, Mr. Bush addressed a crowd of tens of thousands of people. He told them their 2003 revolution that ushered in Georgian President Mikhail Saakashvili set an example for democracy movements in Lebanon, Ukraine, Iraq and Kyrgyzstan.
Hours after that address, U.S. Secret Service officials said Georgian authorities informed them that a device described as a possible hand grenade was thrown within 30 meters of the stage. They say the device did not explode and that they are investigating the incident.
Georgia was Mr. Bush's last stop on a four-nation tour to mark the 60th anniversary of the end of World War Two in Europe.
