538 researcher's discovery about guns

[oneshooter]

50. Go ahead and ban them.

However the Fifth Amendment comes into play. "While the federal government has a constitutional right to "take" private property for public use, the Fifth Amendment's Just Compensation Clause requires the government to pay just compensation, interpreted as market value, to the owner of the property, valued at the time of the takings. The U.S. Supreme Court has defined fair market value as the most probable price that a willing but unpressured buyer, fully knowledgeable of both the property's good and bad attributes, would pay. The government does not have to pay a property owner's attorney's fees, however, unless a statute so provides."

And where would the several billion dollars come from?

And are you willing to go house to house searching for them, with no legal warrants?