Countries throughout the world should embrace globalization and explore new ideas on how to overcome challenges including security, poverty and environmental damage, Mikhail Gorbachev told more than 1,000 people at the University of Texas-Pan American on Tuesday. “Everything will hinge on how we use globalization,” he said through an interpreter. The Nobel laureate and former Soviet leader’s speech began the university’s Distinguished Speakers series for the 2007-08 school year. Gorbachev, who led the Soviet Union from 1985 until its collapse in 1991, has visited various places throughout the United States in the past couple of weeks, including New Orleans, where...