PHOENIX (AP) - Students who placed second in a national underwater robotics competition won't be going to next year's contest because of the possibility of their illegal status in the United States. The students, from Carl Hayden High School in Phoenix, recently beat out high school and college students from across the country, including the prestigious Massachusetts Institute of Technology, and fell only to the reigning champs from the Marine Institute of Memorial University in Newfoundland, Canada. On the heels of their success, the students learned that next year's contest will be held in Canada, and that they won't be...