With a spate of school shootings across America, schools are teaching kids how to fight active shooters. They’re bringing in local police officers to conduct drills for dealing with them. Many schools use a controversial program called ALICE, which stands for "Alert-Lockdown-Inform-Counter-Evacuate.” The "counter" step tells kids to group together to fight off shooters. There were 40 school shootings in 2014, and 20 so far in 2015. Story by Jacob Shamsian and editing by Jeremy Dreyfuss.