Curfew for teens?

http://www.desmoinesregister.com/apps/pbcs.dll/article?AID=2011101220325
Curfews are being considered because of the high rate of phone calls they have recieved that are related to gun shots and fueding teenangers. In Iowa City the curfew for 16-17 year olds is they are banned from public places from midnight to 5a.m. A pro is that it would stop things from happening at night, a con is that there is still things going on during the day and at school such as bullying. I think that a curfew wouldn't do anything really, I think it would just make teenangers find a way around it like they do everything else. And it really wont help the violence because Ive heard gun shots during the day, so basically a curfew wouldn't make much of a difference just give them another law to defy.