Wisconsin Assistant Attorney General Brian P. Keenan today had barely begun his defense of a requirement that doctors who perform abortions have admitting privileges at a nearby hospital when he was interrupted. Judge Richard A. Posner of the 7th U.S. Circuit Court of Appeals noted the state law was enacted on a Friday and went into effect the following Monday. “That was clearly designed to close down abortion clinics,” Posner said, noting that it takes months to get hospital privileges. Such an action on the part …