Who's Got the Acid? These days, almost nobody.

According to this article LSD use in America is at an all time low. The reasons? Apart from a change in the way of recording usage statistics, the primary factors appear to be the breakup of the Grateful Dead and the arrest of 2 people from Kansas who produced 95% of the US's LSD. They apparently had 2 billion doses 'in stock' at the time of arrest.