U.S. Sen. Patty Murray was in Vancouver on Wednesday challenging high school students to answer these questions: What is behind terrorist Osama bin Laden's popularity in some parts of the world, and should the United States adopt his nation-building tactics? Speaking at Columbia River High School, Murray, D-Wash., responded to questions from students, most about the war on terrorism or government spending for education. Later Wednesday, Murray visited C-Tran headquarters and checked out a new bus. Murray met at Columbia River with world history students and student government leaders. Across town, Hudson's Bay High School students participated via teleconference. Murray...