WASHINGTON – The federal government is escalating security around the country in preparation for the 10th anniversary of the 9/11 terrorist attacks and conducting confidential briefings with state and local law enforcement organizations. But officials say there is no specific indication that a terror plot against the U.S. is under way.

Americans can expect more security at airports, mass transit stations, U.S. borders, government buildings and major athletic events over the next month, said an intelligence official who spoke anonymously to discuss sensitive security matters.

The FBI and Homeland Security Department have been briefing state and local law enforcement agencies on potential terror threats to the U.S. and ways to increase security in their communities.