[Tonchi]

No, it is not legal due to laws from the times of Elliot Ness. And with the Religious Right running things in a campaign year it is not likely to change. A company in Bolivia has been encouraged by the new leader there to manufacture coca products since it is the unsung major economy of the area, and they ran into problems with the USA almost immediately. You can still buy the stuff abroad, but since the smell of coca is very distinctive there is no product that would get through the sniffer dogs at the post office.