overbreadth:  a statute must pass muster for all the speech it regulates;
i)    e.g. if it regulates fighting words, but also regulates protected speech, the part of the statute that regulates protected speech must pass the applicable test (strict or intermediate scrutiny, depending on content based or neutral regulation)
ii)    exception to standing:  if only the fighting words part of the statute is applicable to the P, usually the P wouldn’t have standing to assert the rest being unC’al, but for 1st am, he can.