SALINAS POLICE ARE INVESTIGATING A BURGLARY THAT TOOK PLACE AT THE AMERICAN RED CROSS ON LUPIN DRIVE OVER THE WEEKEND.    OFFICIALS SAY THREE TRAILERS BELONGING TO THE ORGANIZATION WERE BROKEN INTO BETWEEN JULY 3^RD AND JULY 7^TH.      NEARLY 2-THOUSAND DOLLARS WORTH OF SUPPLIES WERE STOLEN AND THE TRAILERS WERE VANDALIZED.    ANYONE WITH INFORMATION IS URGED TO CONTACT THE SALINAS POLICE DEPARTMENT.