By EVO MORALES AYMA
Published: March 13, 2009
La Paz, Bolivia
... Many plants have small quantities of various chemical compounds called alkaloids. One common alkaloid is caffeine, which is found in more than 50 varieties of plants, from coffee to cacao, and even in the flowers of orange and lemon trees. Excessive use of caffeine can cause nervousness, elevated pulse, insomnia and other unwanted effects.
Another common alkaloid is nicotine, found in the tobacco plant. Its consumption can lead to addiction, high blood pressure and cancer; smoking causes one in five deaths in the United States. Some alkaloids have important medicinal qualities. Quinine, for example, the first known treatment for malaria, was discovered by the Quechua Indians of Peru in the bark of the cinchona tree.
The coca leaf also has alkaloids; the one that concerns antidrug officials is the cocaine alkaloid, which amounts to less than one-tenth of a percent of the leaf. But as the above examples show, that a plant, leaf or flower contains a minimal amount of alkaloids does not make it a narcotic. To be made into a narcotic, alkaloids must typically be extracted, concentrated and in many cases processed chemically. What is absurd about the 1961 convention is that it considers the coca leaf in its natural, unaltered state to be a narcotic. The paste or the concentrate that is extracted from the coca leaf, commonly known as cocaine, is indeed a narcotic, but the plant itself is not.
Why is Bolivia so concerned with the coca leaf? Because it is an important symbol of the history and identity of the indigenous cultures of the Andes ...
http://www.nytimes.com/2009/03/14/opinion/14morales.html?_r=1&ref=opinion