Is it ‘against the law’ for NFL players to kneel for the national anthem, as Roy Moore said? No | PolitiFact

Roy Moore, Alabama's Republican nominee for the U.S. Senate, introduced a new dimension to the debate over NFL players’ protest by claiming that kneeling during the national anthem is illegal. "It’s against the law, you know that?" Moore said in an Oct. 16 interview with Time magazine. "It was a act of Congress that every man stand and put their hand over their heart. That’s the law."....
http://www.politifact.com/truth-o-meter/statements/2017/oct/19/roy-moore/it-against-law-nfl-players-kneel-national-anthem-r/