IRS phone scams rise during tax season, don't fall victim

I am reading this article IRS phone scams rise during tax season, don't fall victim here (http://www.nj.com/hunterdon-county-democrat/index.ssf/2015/03/irs_phone_scams_rise_during_tax_season_dont_fall_v.html#incart_related_stories). And reading this article Senate Special Committee Investigates IRS Scam Phone Calls here (http://www.kktv.com/home/headlines/Senate-Special-Committee-Investigates-IRS-Scam-Phone-Calls-299996671.html).