Not Again! Another U.S. School Shooting

Weston High School students come back to the school to visit the scene today in Cazenovia, Wis. A teenage student brought two guns to his rural school and critically wounded the principal today after a struggle with adults and other students, authorities said. The 15-year-old was taken into custody, officials said. No one else was hurt. (AP Photo/Morry Gash)

Question: I wonder what steps the local schools have taken to reduce the risk of this kind of violence?