The US Environmental Protection Agency is recommending that owners of older buildings, including schools, test brittle, aging masonry and window caulking for high levels of chemicals believed to cause cancer.

The recommendation is targeted at thousands of buildings constructed or renovated between 1950 and 1978, when polychlorinated biphenyls, widely known as PCBs, were banned. Several Massachusetts schools and colleges have recently found high levels of PCBs in caulking.

The federal agency said the danger to schoolchildren is unknown, but added that “we’re concerned about the potential risks associated with exposure to these PCBs, and we’re recommending practical, common-sense steps to reduce this exposure as we improve our understanding of the science,’’ said EPA Administrator Lisa P. Jackson.

Recomending probably means nobody will do anything but once the lawsuits start flying they'll have no choice. The EPA is run by big business - that was all suppose to change with obama - obama - change - yea right he's worst than the last guy at least you knew what you were getting