https://ed.ted.com/on/Qm7SN3D2
https://www.law.cornell.edu/supremecourt/text/07-290
https://www.gpo.gov/fdsys/search/pagedetails.action?st=second+amendment+bearing+arms&granuleId=GPO-CONAN-2002-9-3&packageId=GPO-CONAN-2002
http://law2.umkc.edu/faculty/projects/ftrials/conlaw/beararms.htm