Following an investigation, ESRB slaps dreaded 18-and-over rating on controversy-wracked bestseller; Take-Two lowers guidance, still blames "unauthorized third party modification."Today, Take-Two Interactive announced that as the result of an investigation by the Entertainment Software Rating Board (ESRB), Grand Theft Auto: San Andreas will now bear an AO for Adults Only rating. Previously, the game was rated M for Mature.Hilary, you will never become president you crazy bitch!After video of the mod was widely circulated, such figures as ardent anti-game activist Jack Thompson and U.S. Senator Hilary Clinton blasted the game. Clinton went as far as to publicly equate violent games with cigarettes and alcohol as a hazard to America's youth. In turn, political heat caused the ESRB to launch the aforementioned investigation, which looked into whether or not the mod was included in the original game or was made by a third party.