It needs a law??
"Legislation sponsored by U.S. Senator Jim Inhofe (S.1877) clarifies U.S. law to allow veterans and servicemen not in uniform to salute the flag. Current law (US Code Title 4, Chapter 1) states that veterans and servicemen not in uniform should place their hand over their heart without clarifying whether they can or should salute the flag. The bill passed in the Senate recently by unanimous consent.
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