San Francisco 49ers quarterback Colin Kaepernick’s decision to take a knee during the national anthem has set off a wide-ranging debate over free speech and how far athletes should go with their protests.
Is also has put the nation’s most popular sports league, which regularly wraps itself in the flag, at the center of a debate over what it means to be patriotic — all coinciding with the 15th anniversary of the deadliest terror attack on American soil.
