Amber Alerts: How successful have they been in saving abducted kids?

[Wireless News]

When teenager Hannah Anderson went missing a week ago – thought to have been abducted by a family friend, an older man named James Lee DiMaggio – the first way many people in southern California knew about it was through an insistent, blaring text message on their cell phone.

More... (http://news.yahoo.com/amber-alerts-successful-saving-abducted-kids-173806611.html)