An Italian wine education

Drinking Italian wine anywhere -- even in Italy -- can be fraught with complications. Is that wine from the area in Piedmont known as the Langhe? Better not say so on the label, unless you have express permission to do so, or risk a fine. Labelling was one of the few topics I didn't cover in an extensive conversation with Marco Lori, a sommelier who kindly agreed to be grilled. I'm somewhat in awe of people who seem really to know their wines, and so I took the opportunity to ask Marco to try an...