Why didn't the American woman's football team sing the national anthem?

purplepoppy
It's common practice to sing the national anthem before an international match so when the American woman's team refused to sing and stood in silence it drew global attention and speculation.

There's even been a call from one critic to ban America from future tournaments and another says it's ugly Americans showing their true colours. www.dailymail.co.uk/.../...heirs-hands-hearts.html

We love speculation on GAG so what's your theory?
They didn't know the words
Americans can't sing
Prematch oral sex sore throat
Some political statement
They're embarrassed to be Americans
Other, please enlighten us.
Select gender and age to cast your vote:
Why didn't the American woman's football team sing the national anthem?
38 Opinion