Nearly half of American tax filers didn't have to pay any federal income tax last year. But Americans -- especially New Yorkers -- shouldn't enjoy the free ride. Soon enough, everybody will pay for the higher spending that Washington's "generosity" encourages. And thanks to Washington, we'll be paying for higher state and local spending at the same time, too. Just a decade ago, two-thirds of American tax filers still paid into the tax system. But both Democrats and Republicans have spent the last quarter-century inventing and expanding all kinds of voter-friendly tax breaks. Easy-to-use tax software has helped people get...