The largest drug deal in US history. Canada got some catching up to do
1. 21.4 Tons of Cocaine – $6 Billion
Of the 10 largest seizures in history, cocaine makes the list once more at the very top of the most costly. However, this time, the drug was seized on American soil in Los Angeles, California, in 1989. The seizure was described as the second biggest in United States history. The cocaine was found hidden in concrete fence posts inside a secret warehouse. The posts were also inserted into metal tubes, and had about 6 kilograms of cocaine in kilo and half-kilo sized bricks. Five men were arrested in the bust worth billions.
http://www.therichest.com/rich-list/the-biggest/10-of-the-biggest-drug-seizures-in-history/