There's a communications technique called jamming, which consists of inserting random, unrelated keywords into innocuous email or other electronic communications. The idea is that if enough people engage in jamming, then the keywords that various shadowy governmental organizations use to troll for interesting messages will become much more difficult, and hopefully useless.
If that sort of thing interests you, you might like to know some of the hundreds of words and phrases the DHS uses when trolling teh intarwebs for the Spoor of Terrorism (TM):
The Department of Homeland Security has been forced to release a list of keywords and phrases it uses to monitor social networking sites and online media for signs of terrorist or other threats against the U.S.The intriguing the list includes obvious choices such as 'attack', 'Al Qaeda', 'terrorism' and 'dirty bomb' alongside dozens of seemingly innocent words like 'pork', 'cloud', 'team' and 'Mexico'.
Released under a freedom of information request, the information sheds new light on how government analysts are instructed to patrol the internet searching for domestic and external threats.
The words are included in the department's 2011 'Analyst's Desktop Binder' used by workers at their National Operations Center which instructs workers to identify 'media reports that reflect adversely on DHS and response activities'.
As a friend of mine on Facebook so eloquently commented, "Jihad ricin Pakistan water supply; 9mm pressure cooker bandages materiel. Electrical infrastructure? Cholera anthrax, gunpowder centrifuge plutonium Obama."
Plutonium gunpowder centrifuge, indeed.