Some Missouri school districts have decided the best way to thwart a massacre like the Sandy Hook shooting in 2012 is to train teachers to carry concealed weapons in the classroom.

The company's founder, Greg Martin, told the Star only school district administrators and local law enforcement will know the identity of the teachers trained to pack heat.

"Like air marshals on planes," Martin told the newspaper. "How many hijackings have we had since 9/11?"

Ten Missouri school districts have signed up for Shield Solutions training; three more have