Nearly 400 teachers in the Cedar Falls School District spent today learning some new options should they ever have to deal with someone with a gun in their classroom. The training was provided by the Cedar Falls Police Department and focused on updated protocols from the Department of Homeland Security. Much like the fire drill, Stop, Drop and Roll, public safety officials have developed Run, Hide, Fight for use in an active shooter situation.The Cedar Falls School District is one of the first in the state to involve all teachers, not just administrators. Parents will have a chance to weigh in next month.