Think of it this way. You go walking in the woods and do a threat assessment. The greatest "threats" on your radar are the wolf and the bear. The bear is deemed the greatest threat, but it is in the middle of January and all of the bears are hibernating. In this case the bear would still be the greater "Threat" but the wolf, being active, would easily be the greater "Risk". 3 months later, in spring, the"threat" assessment is still the same; however, the greater "Risk" is now from the bear.

This is the basis for the pro 2nd Amend. the " threat" is kept at bay if the government seeks to reduce the "risk" through representation.