WASHINGTON -- The Homeland Security Department's 2007 list of cities at the highest risk of terrorism comes out Wednesday. Some big towns may not make the cut.

Being listed means a share in a $740 million anti-terror grant. That's down from $855 million Congress provided a year ago. The downside of making the list is that the feds think your city is in more danger than most.

The funding is part of an overall $1.7 billion Homeland Security grant program to prevent and respond to terror attacks.

Eleven cities, including Las Vegas and San Diego, may be booted in 2007. The new Homeland Security formula is based largely on intelligence about terror threats and the possible consequences.

Population is just one factor.

Nearly 3,000 people were killed on Sept. 11, 2001, when 19 al-Qaida-affiliated terrorists crashed planes into the World Trade Center, the Pentagon and a field in rural Pennsylvania.

Six years earlier, on April 19, 1995, 168 people were killed when domestic terrorists detonated a truck bomb in front of the Alfred P. Murrah Federal Building in Oklahoma City.