Negotiators for Northwest Airlines and the Aircraft Mechanics Fraternal Association are meeting in Washington DC today in hopes of resolving a four and a half year old contract dispute. A thirty day cooling off period is set to expire this Sunday, opening up the possibility of the second strike in two years at Northwest. Meanwhile Northwest has renewed allegations before a federal judge that the mechanics are illegally disrupting its flight schedule. The union denies the allegations and is marking the resumtion of negotiations by staging informational picket lines. PRESIDENT BUSH has said even if there's no settlement by the MARCH 12 DEADLINE, he'll require the workers to stay on the job for another two months while a solution is sought. Minnesota Public Radio's Mark Zdechllik reports from Washington.