Factors. other countries have mental illness, other countries have video games, but we have unprecedented access to firearms. you take the combination of the risk factors and layer on all these weapons, all these new guns, high-capacity magazines, ar-15 assault weapons and you have the disaster we're seeing in the united states. >> reporter: some states are making changes. governor in colorado and washington state signed major reforms on gun ownership last month, but in washington, d.c., a chronic impasse. >> i have with the full extent of my executive authority -- to do anything about guns. >...