Can America learn from the Netherlands' drug policy of tolerance and ambiguity? The pungent perfume of grass wafts down the Amsterdam street where you walk, under shade trees on a curving canal fronted by landmark brick buildings. You look up, nostrils flaring. Neon lights wink from the facades of cafes with names like the Grasshopper, Dutch Flowers or the Bulldog. Better known as "smoking coffee shops," these Dutch dope dens dispense soft drugs, marijuana and hashish, to a mixed bag of customers. Tourists and locals saunter in then stagger out in a cloud of smoke. Inside the air is blue. People puff and joke, some of them laughing crazily, others digging into snacks while lounging in armchairs. Seventies rock alternates with cool jazz and house music. Soft-drug menus are passed from behind the bar, where an "ethical dealer" has just delivered half a kilo of "skunk nederwiet" -- the Netherlands' prized, domestically grown high-THC power weed. [continues 2925 words]