Proposed bills have been introduced in the House (HR-38) and the Senate (S-446) which would allow holders of permits to carry firearms in all states. They have gathered a substantial number of sponsors. The current language of the bills is very broad and would not only prevent state restrictions on out of state permit holders but allow residents of states without a permit requirement to carry firearms nationwide. There are provisions to allow persons arrested under state laws to recover damages and legal expenses.
If this law passes states will have great difficulty enforcing any restrictions on gun carrying because of the difficulty in establishing that a person is not a resident of another state and because of the difficulty of checking the validity of out-of-state permits. There will be great pressure on states to relax requirements for their own citizens to match those of other states with no restrictions.
In this situation, an insurance mandate could be very important in providing at least some responsibility requirement.