So far, the weight cutoffs have been enacted only by South Florida ob-gyns, who have long complained about high numbers of lawsuits after difficult births and high rates for medical-malpractice insurance.
Mr Cameron and Home Secretary Theresa May called for the review of evidence in response to a request by the McCann family because of the "exceptional" nature of the case,
The West is also turning up the pressure on Beijing to allow the yuan to appreciate, as politicians worry that an undervalued exchange rate is putting their own workers out of jobs.
Chinese agents posing as Falun Gong adherents have been repeatedly sent to western journalists, academics, NGOs, and elected government representatives