. >>> students at stoneman douglas high school in florida have started a new school year with newsecurity. about 3100 high schoolers started cool yesterday on that campus where 17 of their teachers ande classmates wer killed back in february. all of them now areeqred to wear photo i.d.s on lanyards and there's a $6 million surveillance system i place and all classroom doors now lock automatically. >>> closer to home here in , virginia armed security guards will soon join students in schools. school started yesterday but the guards won't be until next month. each school in the county will have at least one armed officer. the school i implementing new training for mental health and first aid. >>> prince george' count students are a month away from going back. all of theseeaers took part in new teacher boot camps. they are eheher new to profession or new to the district. 300 teachers learned the best way to manage classrooms during this workshop. the first day of school in prince george's county is september 4th, the day after labor day. >>> just like many of you ate home h at news4, pets ar