I was certainly amused when the U.S. Customs and Border Protection officer at the Los Angeles International Airport (LAX) asked me if I’d brought any alcohol into the US. Why would I do that, I wondered. I had just flown for 10 hours across the Atlantic and was about to embark on my California wine-tasting road-trip from LA to Santa Barbara and the Central Coast, and from there to Big Sur and San Francisco (with a detour to the Yosemite National Park). I was planning to drive on the Pacific Coast Highway and visit as many vineyards and wineries as I could (the fact that I would be driving was…