Opinions please.......

I think it's a really scary time to be a parent. I really hate that you can't even send your child off to school worry-free anymore. Locally, in several cities there are gang rumblings about some sort of resistance to authority that will occur in school on February 29th. They didn't even start in my city, but things like that can spread. The school district sent a letter and a phone message home saying that they are aware and are working with police. The letter asks that we send our children to school anyway, "We need your support and cooperation by having your children in school. Friday, February 29, 2008 will be a regular school day for all students in the School District."
I am wondering how it makes a difference, security-wise, to have all kids in school. Wouldn't it be easier to manage, should anything occur, with less kids to protect? I know the chances of something happening at the elementary school level are slim, but it's not unheard of, and it would make more of a statement. School shootings are becoming increasingly common, so it occurs to me that doing something to an elementary school would have more shock value. I also worry that, forgive me for saying it, but in a sea of minority students, a caucasion student is more likely to stand out and and thus become a target. I've been seriously considering keeping her home that day-I hesitate mainly because she has so recently missed school from getting sick twice and then attending the funeral.
Any advice to offer? What would you do?