http://www.11alive.com/news/usnews_article.aspx?storyid=46365
http://www.wgcltv.com/Global/story.asp?S=1831722

“Right now there are select flights that are taking off,” Delta spokeswoman Liza Caceres said, adding that she could not specify the number or the particular flights.
…
“This is not a safety or security issue”