How seriously are U.S. broadcasters taking the government’s threat of a major crackdown on foul language and obscenity? Very seriously. Even high-minded PBS, which is feeling particularly vulnerable after several years of right-wing attacks from within, is overhauling its internal regulations on language and content. “The FCC has said it takes context into account when it reviews indecency complaints… But some broadcasters say recent FCC rulings have been arbitrary and confounding.”