Life Smoked Out Britain just issued a cigarette ban that would shock Americans. The reaction here has been something else. Justin Tallis/Getty Images Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, delivered to your inbox daily. Smoking, or at least the idea of smoking, has undoubtedly had a comeback recently. Celebrities are smoking again , or so it seems, since there are popular Instagram accounts dedicated to posting photos of them doing it. There have been pieces like the provocatively headlined “ I Mean, Why Shouldn’t We All Smoke Cigarettes Again?…