What can a hacker do about gun violence?
gills: You're asking a loaded question by conflating violence and possession and/or use of firearms, as if the firearms are part of the motivation for the violence.Violence decreases with less unwanted births, a higher general level of education, and the evenly-applied rule (and understanding) of law.  Put your time and money to work on those fronts and you will see a material decrease in violence.If you live in a place with high gun-ownership, you aren't going to effect change by trying to ban the guns.  Advocating firearms safety education would be a good place to start, and believe it or not the NRA is probably your best hope for bringing a culture of firearms safety into your community.