Crowdsourcing video surveillance can work both ways

From GCN.com:

There is some irony involved when crowdsourcing for situational awareness involves gathering data directly from those being watched.

Take Occupy D.C., part of the Occupy movement, an international protest against social and economic inequality. Participants in Occupy D.C. inhabited McPherson Square and Freedom Plaza from October 2011 until they were evicted in February 2012. The U.S. Park Police used video footage supplied by Occupy D.C. to monitor the group, David Mulholland, commander of Technology Services for the Park Police, said during a session at the GovSec conference in Washington, D.C.