HUNTINGTON - Newsweek magazine asked about 1,000 Americans to take the official U.S. citizenship test, and about 38 percent failed, raising the question: How much do Long Islanders know about their own country? News 12 Long Island reporter Shari Einhorn drove out to Huntington to ask local residents some of the questions from the citizenship test. Some of the responders failed to name the current U.S. vice president and say how many amendments there are to the Constitution.Bonnie Friedman, of Huntington, answered correctly that capitalism is the economic system in the U.S., but she had a harder time remembering that there are 435, not 535, voting members in the U.S. House of Representatives.Other questions that tripped up responders involved naming the president of the U.S. during World War I and the current speaker of the U.S. House of Representatives.