http://www.washingtonpost.com/wp-dyn/content/article/2009/01/26/AR2009012601831.html

the part that caught my eye in this article is when the spokesperson replies about the NON mercury Re-Agent they used no longer provides a mercury threat.
The real problem is the a re-agent is used in chemistry to return something down to a form useful for further chemical processing, like CRACK, who's re agent is baking soda heat and water.
the oil that drops, is the useful crack that needs to be oxidized to be of use to humans(crack heads)

re-agent, funny...