Full tilt.(comedian Robin Williams)(Review)

America abounds with comedy clubs, comedy channels, and situation comedies, but the fact is that comedy, as it is practiced on these shores, is generally a tame thing. The unbridled, murky mischief of a genuine madcap doesn't fit within the polite frame of today's media, and though the politically incorrect guff that comes to us over the airwaves may give citizens the illusion of free speech, there is no dangerous or transgressive thrill to it. Even the term for most comedy acts -- "standup" -- signals the paralysis of the genre. Most of our comedians don't aspire to say the unsayable or to disturb the peace; they just want to get a club gig and a sitcom. To catch sight ...