The idea that children are uniquely vulnerable to profanity is probably valid insofar as children parrot things that they hear. That said, the fact that we tolerate violence and sex on the television, but you can't say fuck without censure, that is seriously fucked up. On any number of prime-time network sitcoms, you will hear obvious sexual double-entendres that are much grosser than the f-bomb. The American obsession with dirty words is bizarre, especially given their prevalence in our day-to-day vocabulary. Is there some groundswell of popular animus against vulgar language? Cuz I gotta be honest, the vigilance our censors display on this issue creeps me the fuck out.