1) Hacker group 
HacDC is a hackerspace in Washington, D.C. and a 501(c)(3) nonprofit. According to the HacDC website, `HacDC members improve the world by creatively rethinking technology. We break, build, and occasionally abuse technology in the pursuit of greater knowledge about how it works and re-purposing it to build new things.` In March 2009, its activiti.....