Deeply frustrated by perceptions among critics that the U.S. Catholic Church has done little to combat a sexual abuse crisis, American bishops meeting here Thursday heatedly defended their response to the scandal. “People are saying a lot of things. Is there no attempt to judge whether this is a fair statement or an accurate statement or not?” Cardinal Francis George of Chicago asked reporters. “The facts are the bishops have moved, and moved dramatically, in ways that no other group has moved.”