In the UK, the Guardian discusses how and why the market for Ecstasy has collapsed. My favorite quote:
“[Ecstasy] lay undisturbed until the 1950s, when the CIA picked it up for a few desultory animal tests in its search for a truth serum. How the agency’s interrogators planned to determine that their dogs were telling the truth is unclear, but whatever they saw did not impress, and MDMA never officially made it to human trials.”