President Barack Obama has appealed for calm on the streets of Missouri after days of clashes between police and protesters.
The tensions follow the fatal shooting of a black teenager by a police officer in the St. Louis suburb of Ferguson.
President Obama said there was "no excuse" for "police to use excessive force against peaceful protesters" or for "violence against police".
ITV News' Washington Correspondent Robert Moore reports:
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The force has been charged under the Health and Safety Act and will appear before magistrates in May.
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The club's plans have provoked much criticism, with Amnesty International describing Myanmar as an 'odd choice' for a tour.