After accumulating evidence via the Freedom of Information Act that showed theEnvironmental Protection Agency conducted disturbing experiments that exposed humans to inhalable particulates the agency has said are deadly, sound science advocate Steven Milloy has sued the federal government. The trials, which were carried out at EPA’s Human Studies Facility at the University of North Carolina in Chapel Hill, exposed subjects to fine particulate matter (called “PM2.5”) at extremely elevated levels for up to two hours at a time. EPA’s Web site on particulate matter and its 2009 “Summary of PM2.5 Risk Estimates,” stated, “an examination of cause-specific risk...