Death Rays

Vdara, a new hotel in Vegas, was just built.  It's side is covered in all glass, which is common.  On the other hand, the death rays that these glass windows, that are aimed at the pool area, produce are not so common.  These rays have burned some guests and can melt plastic bags.  Although these rays aren't deadly, you do not want to stay under them for a while.  The building's concave shape creates a magnifying effect.  How long do you think these hotel will last before a law suit occurs?