http://edition.cnn.com/2004/TECH/08/10/olympics.security.ap/index.html

Software will be watching and listening.

The system -- developed by a consortium led by San Diego-based Science Applications International Corp., or SAIC -- cost about $312 million and took up a sizable chunk of Athens' record security budget of more than $1.5 billion.

Spoken words collected by the cameras with speech-recognition software are transcribed into text that is then searched for patterns along with other electronic communications entering and leaving the area -- including e-mail and image files.