March 12, 2015 9:00 pm Feds Warn of IRS Tax Scam Callers who are posing as IRS agents have bullied taxpayers into handing over $15.5 million. Randy Mac reports for the NBC4 News at 6 p.m. on Thursday, March 12, 2015. US & World Videos 2:56 USC faculty march in support of pro-Palestinian protesters 2:09 LAPD on tactical alert due to UCLA protests 2:38 Photographer recounts violence at UCLA protest, counter-protest 3:33 Crowd of protesters grow at UCLA despite order to disperse 2:52 Jewish student recounts injury during UCLA protest