San Francisco is 1st major US city to ban e-cigarettes

SAN FRANCISCO (AP) — San Francisco became the first major U.S. city to ban the sale of electronic cigarettes after supervisors gave the measure its second and final vote Tuesday.Backers say they hope the legislation will curb underage use of e-cigarettes, but critics say the ban will make it harder for adults to purchase an alternative to regular cigarettes.San Francisco is a city that celebrates its marijuana culture, but it appears deeply opposed to other vices. Last year, voters approve