MONROE - Monroe High School's biennial German exchange trip is canceled this year but will be rescheduled for next year. Terri Montgomery, the district's director of curriculum and instruction, said at a recent school board meeting that the students wouldn't be traveling due to a travel warning by the United States government. As of April 21, the U.S. government has issued no travel warnings or alerts for Germany, but the Department of State updated its "Worldwide Caution" on March 3 to warn about "the continuing threat of terrorist action and violence against U.S. citizens and interests throughout the world," including Europe.