After a disturbing rash of anti-Semitic acts, which includes Jewish cemeteries being vandalized and bomb threats called in to Jewish community centers, Senate Minority Leader Chuck Schumer asked the Federal Communications Commission for a waiver that would allow authorities to unscramble anonymous phone numbers that are being used to call in threats. Schumer’s letter specifically referred to a series of bomb threats that were made on Feb. 27 to 11 JCCs, several of them in or near New York.