The Monday appointment of Frank Bisignano, known for his Wall Street acumen and as an ally to Elon Musk’s Department of Government Efficiency, as the new IRS CEO is raising concerns about how the agencies will handle taxpayer data between the two of them and other agencies as the Trump administration pushes hard on its priorities. Data handling at the IRS and at the Social Security Administration since President Donald Trump took office has already been a source of controversy, too. The po...