Five people have been arrested in Miami for scamming 1,500 people out of more than $2 million by impersonating IRS agents. The scammers demanded payment via iTunes gift cards and threatened arrest if payments were not wired immediately. Scam is the “largest and most pervasive” the IRS has faced over the last three decades. Some 6,400 victims have reported $36 million in losses, some paying up to $5,700 on average. The IRS will not ask for payment using prepaid debit card, money order or wire transfer.”]