http://www.itworld.com/security/64193/researchers-find-ways-sniff-keystrokes-thin-air
http://www.networkworld.com/news/2009/070909-electrical-data-theft.html?source=NWWNLE_nlt_daily_pm_2009-07-09
http://tech.yahoo.com/blogs/null/146238
Along these lines, I also found an article that contains a picture of the previous eavesdropping attempts made against LCD monitors. Yes, that's right. They have a picture of the reconstructed image retrieved via RF.
I hope you're not typing up (or reading) impure thoughts about the government!

Update: Fixed measurement system error.