The US army has sent out intelligence warnings that terrorists may be utilising the social networking tool Twitter to organise attacks. The warning is part of a full report on how terrorists are able to use the Web and other technologies.
The Twitter chapter of the report states: "Twitter has also become a social activism tool for socialists, human rights groups, communists, vegetarians, anarchists, religious communities, atheists, political enthusiasts, hacktivists and others..."
And goes on to say the above groups use it "to communicate with each other and to send messages to broader audiences." The report found that Twitter is already being used by extremists and terrorists to spread their message.