Rick, athletes are free to take a knee...no one is forcing them to stand. Although they are free to do so without being criminally liable, their jobs can be at risk depending on their employer. The bill of rights are freedoms we enjoy from the government, they do not pertain to private organizations; just like you can keep someone from bringing a firearm onto your private property. 

Catherine, why should insurance cover every single medical expense one may incur? That's what has driven costs up so much as it is. A fecal occult blood test screening (for colon cancer) can be done for $139.