Jun 21, 2012 If these wells are leaking, they could contaminate water supplies and disrupt the most important way we dispose of liquid waste.
Jul 26, 2013 If you've been following the problems encountered by the banks, you've probably come across the phrase "toxic assets." They've poisoned banks' balance sheets and brought them to the brink of failure. But what is a toxic asset, exactly? Marketplace Senior Editor Paddy Hirsch explains.