If you've got a flag -- it's flying outside the house or the shop today, right? And why should you fly the flag today?
Because you/we can, without worrying that someone - the dictator, the government, the military, anyone - will come take it - or you - away.
And why are we allowed to fly the flag? Because many men and women were willing to lay their lives on the line so we could enjoy the freedom to fly the flag.
Our flag is out just about every day. Is yours out - today, at least?