The Ames School Board has approved the first of what could be several newsecurity measures implemented following several bomb threats in the last school year. Theboard approved a new security plan and the installation of electroniccard-activated door locks for the high school. Deputy Superintendant RayRichardson says they’ll gradually implement the policy.Richardson says the district is also looking at installing cameras near thedoors of the high school. He says they are looking at putting motiondetectors in all school buildings.The electronic door locks will cost the school district 47-thousand dollars.The high school was evacuated three times last school year due to bombthreats.