A top U.S. official says security for President Bush's January 20th inauguration will be at the highest level in history.
Outgoing Homeland Security Secretary Tom Ridge told a news conference today (Tuesday) there is no specific terrorist threat facing next week's inauguration.
But he said the ceremony is the most "visible" manifestation of U.S. democracy.
He says security will include thousands of police and security officials from more than 50 state, local and federal agencies. They will be linked by a state-of-the-art communications system.
Security also will include sensors that monitor the air for traces of chemical or biological agents.
Portable x-ray machines will scan packages and vehicles, while planes and helicopters will monitor events overhead.
President Bush's inauguration is expected to be attended by thousands of spectators as well as many protesters.