"Twitter has also become a social activism tool for socialists, human rights groups, communists, vegetarians, anarchists, religious communities, atheists, political enthusiasts, hacktivists and others to communicate with each other and to send messages to broader audiences," the report said.

because GOD KNOWS, they'd never use GPG/Email/SMS or Cell phones...

Twitter is already used by some members to post and/or support extremist ideologies and perspectives. Extremist and terrorist use of Twitter could evolve over time to reflect tactics that are already evolving in use by hacktivists and activists for surveillance. This could theoretically be combined with targeting.

Don't forget, those of us who use it to keep up with each other must be terrorists too!

I guess we need to have some encryption for Twitter now...

Anyone?

U.S. Army warns of twittering terrorists | Latest Security News - CNET News