The deadline to sign the White House Petition to keep knives off planes is Friday, April 5.  The Coalition of Flight Attendant Unions (COFU) held an informational picket at Dulles International Airport, speaking to arriving passengers about the dangers of allowing small knives on planes and asking them to sign the petition before Friday.  The TSA will allow a rule change to take effect April 25, allowing the knives on board.  You can sign the petition at NoKnivesOnPlanes.com