I have never heard of any heroin pure enough to smoke or snort coming from south or central America.
Don
Edit: There does seem to be several purities for Afghan heroin. But every hit I got with the key words "white heroin" came up with a story about Afghanistan. Here is a recent DEA report:
http://www.usdoj.gov/dea/pubs/cngrtest/ct022604.htm
DEA Congressional Testimony
February 26, 2004
<snip>The opium produced in Afghanistan is readily made into narcotics to be sold on the international market, much of which eventually reaches users in Europe. While Europe is the primary destination for Afghan heroin, much of the opium remains in Southwest Asia for local consumption. Laboratories convert the opium into morphine base, white heroin, or one of several grades of brown heroin. Large processing laboratories are primarily located in southern Afghanistan; smaller laboratories are located in other areas of the country, including the Nangarhar Province. In addition, morphine base produced in Afghanistan is shipped to traffickers based in Turkey and converted to heroin.
Transporting converted opium from Afghanistan is no easy task. Larger than the State of Texas, Afghanistan is landlocked, forcing traffickers to rely on challenging overland routes to move drug shipments out of the country. In addition to the traditional smuggling routes through Iran to Turkey, our intelligence reports indicate continued movement of heroin shipments north from Afghanistan through the Central Asian States, notably Tajikistan, to Russia. Some of the heroin is consumed in Russia, while a portion moves on to other markets. Afghan heroin also moves through India enroute to international markets and continues to be trafficked through Pakistan, where heroin is smuggled out through airports and vessels leaving the Pakistan coast.
DEA intelligence suggests that relatively little Afghan heroin is ultimately destined for the United States, although we continue to monitor carefully the market for potential new trends. Through the Heroin Signature Program (HSP), the DEA Special Testing and Research Laboratory analyzes samples from seizures at ports of entry and other randomly selected sources to determine their purity and geographic origin. In 2002, Southwest Asian heroin (which includes Afghan heroin) accounted for ten percent of the weight of all samples analyzed. Preliminary data for 2003 indicate that Southwest Asian heroin was eight percent by weight of the sample, although the 2003 survey is not yet complete. Similarly, the Domestic Monitor Program (DMP), which examines samples bought undercover on American streets to monitor their characteristics, showed that Southwest Asian heroin represented four percent of samples in 2002 and five percent in 2003. Neither HSP nor DMP results should be equated with market share, but rather suggest availability over time.
It is important to remember, however, that the past can be a prologue. In 1984, as much as 50% of the heroin in the American market originated in the Afghanistan/Pakistan border area. We must appreciate history and diligently work to foreclose the return of Afghan heroin to the American market.
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