Department of Homeland Security Undersecretary Caryn Wagner said the use of such technology in uprisings that started in December in Tunisia shocked some officials into attention.
It prompted questions of whether the U.S. needs to do a better job of monitoring domestic social networking activity.
She said: 'We're still trying to figure out how you use things like Twitter as a source.
'How do you establish trends and how do you then capture that in an intelligence product?'
Wagner said the department is establishing guidelines on gleaning information from sites such as Twitter and Facebook for law enforcement purposes, the Associated Press reports. Read More
