"Boston transit officials claim the mass surveillance is intended as a deterrent to crime, citing 28 attacks on drivers so far this year. However, Transit Police superintendent Joseph O’Connor acknowledged to the Globe that “crime is relatively low on buses.”
The new surveillance program has nothing to do with fighting crime, but is part of efforts of the US state to gather an unprecedented amount of information about the US population, as revealed in the documents released by NSA whistleblower Edward Snowden.
In addition to the massive data gathering and processing at NSA centers, local law enforcement agencies are engaged in routine political spying. In the aftermath of the 9/11 terrorist attack on the World Trade Center, a national network of so-called fusion centers was established. Today, there are a reported 78 of these centers located in states and major urban areas across the country.
According to the Homeland Security web site, “State and major urban area fusion centers serve as focal points within the state and local environment for the receipt, analysis, gathering, and sharing of threat-related information between the federal government and state, local, tribal, territorial (SLTT) and private sector partners.”"