In addition to running the one of the world’s largest news and journalism wire services, the Canadian media giant Thomson Reuters is an information clearing house. It creates databases with information gathered from cell phones, credit cards, and health records to name but a few. The data is then sold to law enforcement agencies such as the U.S. Immigration and Customs Enforcement Agency. Tracy Rosenberg thinks Canadians should be aware of this. She is with Media Alliance, a San Francisco-based advocacy group.