Yes, by all means.
Depends on how you travel. The TSA is under federal guidelines so it's still illegal, but there are medical exceptions if they allow it.
Just vacationed from AZ and there were no problems. The staff was excellent and very helpful. They set the bar high
Yes you can. You still need to show a valid ID
You can buy and do whatever you want with it. You probably won't be able to leave the state with it, but you can purchase it while you're there with any state ID
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