Taxpayers Take Over Delphi's Pensions

From Calculated Risk:

http://www.calculatedriskblog.com/2009/07/pbgc-to-assume-delphi-pension-plans.html

Companies underfund pensions to boost their bottom line, similar to California borrowing education monies to balance its budget. This is perfectly legal. I don't understand why the law allows companies or the state to use accounting gimmicks to project an image of financial health. If companies offer pensions, they should fully fund the pension plan at all times. Otherwise, if the company doesn't do well, eventually the taxpayer is on the hook for the pensions--as in the case of Delphi.