I found this article to be a bit sensational. It should be titled, "how I paid some experts to crack my neighbor’s Wifi." I’m not trying to dismiss the threat, just put it in perspective. The use of these tools is either expensive ($2500 a year?) or requires a non-trivial amount of expertise (Aircrack-ng).

I did find the article linked within to be more interesting and informative.

http://arstechnica.com/security/2012/08/passwords-under-assa...