The Gulf nation of Qatar on Tuesday became just the second Muslim-majority country to be admitted into a program that allows its citizens to travel to the United States without first obtaining a U.S. visa . The departments of State and Homeland Security jointly announced that Qatar had met stringent eligibility requirements to join the visa waiver program. Those requirements include a low visa refusal rate, a low rate of visa overstays and a demand of reciprocal treatment of American travelers, who are already allowed to visit Qatar without a visa for up to 30 days. “Qatar has been an exceptio…