Found a link. They are calling it a terrorist act.
'Terrorist Act' on Tech Campus
Three explosive devices found in a courtyard between two Georgia Tech dormitories on the East Campus Monday morning were part of a "terrorist act," an Atlanta police official said.
One of the devices exploded, injuring the custodian who found them inside a plastic bag. Two others were detonated by a bomb squad.
The custodian suffered ringing to the ears and was treated at a local hospital. The events led to a temporary evacuation Monday morning.
http://www.wxia.com/news/news_article.aspx?storyid=70306
Did you go into the city today? What did security look like?