If by "a protective clamp that keeps the blood from flowing" Rabbi Levinson is referring to the Mogen(TM) clamp, then he needs to be brought up to date. The Mogen is no longer manufactured in the US because the firm that made them has gone out of business. It lost two law suits, totalling $12.7 million, after two boys had part of the heads of their penises cut off in Mogen clamps. You can confirm this with the lawyer who handled both cases, David Llewellyn of Atlanta, Georgia. For neutral videos of (secular) circumcisions by other methods (such as the Gomco clamp) see
http://www.circumstitions.com/#pictures
