For anyone writing to Congress, urging their state government to file court briefings, or any other purpose, being able to carry a gun in a national park is a safety issue. In Alaska and several other states, brown bears are a serious threat, and despite what vendors of anti-bear repellent and their agents may say, the best and most reliable defense is a firearm in the hands of a good shooter. Also, at least here in Alaska, traversing national parks is a necessary component of travel within the state, whether on snowmobile, ATV, boat, foot or other off-highway modes.
I certainly agree that hunters and gun owners must now go on the offensive politically on every front. The Brady Campaign is very much energized by the 2008 election results.