LARRY KOTLIKOFF AND ANDY WEISS look at tax plans for left and right. “Our country is saving nothing, investing nothing, growing more unequal, going broke and pulling apart. The current tax system makes these problems much worse. Our plan, called the Purple Tax Plan (www.thepurpletaxplan.org), provides a simple and transparent tax system with much better incentives to work and save, much greater revenue-generating capacity, and much greater equity. Best of all, both parties can call the plan their own.”