By Stan Ingold
http://stream.publicbroadcasting.net/production/mp3/wual/local-wual-1010371.mp3
Northport, AL – All week long Alabama Public Radio has been looking back at the aftermath of the April 27th tornadoes that hit one year ago this Friday. The effects of violent weather are usually obvious, with damage to structures and even the very landscape. Alabama Public Radio's Stan Ingold reports, last year's tornadoes may have left a problem that can cause danger long after the winds died down