That is what the US Army is worried about based on a new intelligence report.
From the report:
"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,"
"Twitter is already used by some members to post and/or support extremist ideologies and perspectives,"
"Terrorists could theoretically use Twitter social networking in the US as an operation tool," it said. "However, it is unclear whether that same theoretical tool would be available to terrorists in other countries and to what extent."
Pretty interesting stuff. Twitter allows for instant mass communication so it is understandable why they would be concerned. One thing that most marketers know on Twitter, is that conversation can be easily tracked. While it could definitely pose a threat, it is also an opportunity to monitor chatter.