Any food or health product has to have one per the FDA. Why does my high purity lab water expire? Why do needles in sealed packages expire? FDA looking out for you regardless of cost or silliness
"No free man shall ever be debarred the use of arms. The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government"
-- Thomas Jefferson, 1 Thomas Jefferson Papers, 334