Slate: The Second Amendment vs. the Fourth Amendment by Mark Joseph Stern:
Does exercising your right to carry a gun diminish your other constitutional protections?
The American judiciary is currently engaged in a vigorous debate that can be summed up in one question: Can you diminish your Fourth Amendment rights by exercising your Second Amendment rights? The Fourth Amendment protects individuals against “unreasonable searches and seizures”; the Second Amendment safeguards the right “to keep and bear arms.” What happens, then, if police officers search or seize a person solely because he is carrying a firearm? Is that “unreasonable” under the Fourth Amendment and therefore illegal?