Tight security expected at CB South

WARRINGTON, Pa. - February 28, 2008 Authorities are concerned about a threat from a group called the 2-29 brigade.

The group is apparently named after the leap year date, February 29th.

Pink 2-29 warnings were spray painted on some school walls recently, officials said.

Police say they are investigating rumors that the group may be planning some kind of violence, but they have not received any specific threat.