One word: diversification.
More:
Meth, coke, cigarettes, and missile systems? Most crooks specialize in one or two areas, but not Mr. Chen; he apparently wanted to be the Wal-Mart of smugglers. You’ve got to give the guy props for ambition.
Edited to add: Darn it, I just realized; if he had done something with booze (untaxed maotai?) he could have had the trifecta.