A report last Tuesday in the Vital Signs column of Science Times described concerns over high school athletes' use of a protein supplement called creatine.
Blunkett's remarks are particularly striking because he was regarded as a hardline home secretary and once described concerns about human rights as "airy-fairy".
In a report in May, the organization, which has 56 member states, described concerns in Kyrgyzstan about "a criminalization of the political process".
Separately, the report also described concerns that the Pakistani military had killed unarmed members of the Taliban, rather than put them on trial.
At a news conference on Thursday, Mr. McCain denounced an article in The New York Times that described concerns by top advisers a decade ago about his ties to Ms. Iseman, a partner at the firm Alcalde & Fay.
Jay Stanley, an A.C.L.U senior policy analyst, described concerns about a system that would rely on a commercial "data broker" to collect background information and essentially assign a passing score to qualified participants.
