Nearly half of Americans who file federal income tax returns do not pay any federal income taxes because they receive certain tax credits. Many of these nonpayers actually receive a cash payment from the IRS because of refundable tax credits. Refundable credits are increasing the level of dependency, and nonpayers will soon reach the tipping point where a majority of tax filers pay no taxes and can vote increasing government benefits at no cost to themselves. That is a deadly recipe for never-ending increases in government spending, inevitably leading to a fiscal implosion when there are no lo...