Chart: What Republicans demanded in exchange for not shutting down the government Rachel Maddow Oct. 16, 2013, 9:40 PM EDT / Updated Oct. 16, 2013, 9:45 PM EDT ...

By way of an answer, Dr. Catania, a behavioral and experimental psychologist, updated his chart to show the period covered by the federal ban on assault weapons -- 1994 to 2004.