July 4 attacks called unlikely

WASHINGTON (CNN) - The Department of Homeland Security and the FBI sent a bulletin to state and local officials Tuesday saying there is no indication of any planned terrorist attack in the United States this holiday weekend, but it advises them to be vigilant just in case.

"There is no specific credible intelligence that terrorist organizations are planning attacks against the homeland during Fourth of July celebrations," according to a homeland official who has seen the document.

But the bulletin says that because of the number of large gatherings and increased travel over the holiday period, authorities should heighten their vigilance, in particular for indicators of pre-operational surveillance and planning.
–From Homeland Security Correspondent Jeanne Meserve