They start lining up before 7 a.m. An hour and a half later, more than 60 people are waiting to get into the Internal Revenue Service’s Taxpayer Assistance Center. Last year, to reduce the lines, the IRS discontinued its practice of preparing simple tax returns as a courtesy for people. The queues have stayed the same or grown longer, because so many people come in with questions about tax credits for Obamacare and what to do to prevent identity thieves from stealing their refunds.”