Getting high is becoming as American as apple pie. Half of U.S. residents have tried marijuana, and 17% currently smoke weed — both new highs since the tune-in drop-out 1960s, a new Gallup survey released Thursday revealed. The poll attributed the increases to growing acceptance of cannabis, with 23 states including New York, legalizing recreational use of weed and 38 states allowing the sale for medicinal purposes. “As marijuana has become more available to Americans and legal in an increasing number of states, their reports of use and experimentation have increased too. Now, half of the country has tried it,...