We have all heard the news of WPA with TKIP being vulnerable but have you heard of man in the middle attacks against WPA2? Read this document and see where Airtight is claiming to find a "NEW" vulnerability. This is actually old news and all you have to do on a Cisco controller to stop it is to set P2P Blocking to drop on your advanced WLAN setup in the controller.
http://itwnewsletters.itworld.com/t/6632474/160957695/308647/0/