Hey we actually agree on something...At least the first part of the above anyway...
I don't think the government or anyone else can force a gun owner to store their guns in a certain way...responsibility is with the gun owner as well as the consequences, transporting them is different...I would guess that they could pass legislation that would require locked containers much the same as it is now for airline passengers to transport firearms...
I would imagine that if legislation was enacted that would require the registering of certain firearms (based on legal sales records etc) that most original purchasers would merely say they sold the arms in states that did/do not require any records etc...
From what I have seen... Every state has a law on storage now...
Here is except from NC..
7. Storage of Firearms
Any individual who resides with a minor, who owns or possesses a firearm, and
stores or leaves that firearm in a condition that the firearm can be discharged, and in
a manner that the individual knew, or should have known, that an unsupervised minor
would be able to gain access to the firearm, is guilty of a misdemeanor if such minor
gains access to the firearm without the lawful permission of the minor's parents or a
person having charge of the minor, and the minor in turn possesses that weapon
unlawfully on any campus or educational property in North Carolina; exhibits the
weapon in a public place in a careless, angry, or threatening manner; causes personal
injury or death with the weapon not in self defense; or uses the weapon in the
commission of a crime. A minor is defined in this law as anyone under the age of 18
who is not emancipated.