Woo... Now this is something that I can sink my teeth into...
TC, my father was the same way... We were brought up not just to respect the flag, but to respect it because we knew everything that it stood for. At a Wings game, Tigers game, Memorial day services at City Hall, whatever the event that the National Anthem, or Pledge of Allegiance is being rendered, hats come off, we faced the flag, with our hand over our heart, and you respectfully sing/recite. And, I cannot stand when you've got your pro atheletes rocking, dancing about, stretching, etc., while it is being done. Or the way the last two or three lines are drowned out by cheers. Or when you have reporters and sportscasters talking through it. Or... well, you get the idea.
Now... The National Anthem is a hard song to sing... I can sing it, but there are many who cannot, it covers a very wide scale. It is my belief, that, as a citizen of the United States of America, it's more about the song, and what it stands for, than how you sing it. I still, to this day, proudly sing the National Anthem, and really could not give a crap less who happens to be looking. (and I'm self-conscious as the day is long, for the record)
Now, regarding professional sporting events and things of that nature... I agree with Mingez on two points. People can sing the anthem... I have seen it done. I have done it. Find people to sing it... However, I also know that we're talking millions of dollars in promotions and such for an event like the Super Bowl... Allright then. Play a studio version. One crafted just for the event. It will sound, well, like it does now when it is lip synced, which is pretty darn good (as long as you don't have someone slaughtering it, holding out and warbling the notes like an accordion going through a brush chipper). But drop the whole "I'm really singing it" facade... It's the song of our country, and what it stands for, not something to be used to advance your career, or up the ratings on whatever network happens to be carrying the event. Play a recorded version if need be... Drop the act. The point is the song. Of course, in this PC day and age, I'll be surprised if they can even perform the National Anthem anymore in the future...
Anyway, just my thoughts, I happen to believe that we have a truly amazing, very emotion-inspiring, yet wholly underappreciated National Anthem. You can take liberties with it, three versions that I've been analyzing lately are the Dixie Chicks Superbowl version (three part harmony), the Buckingham Palace September 11 Changing of the Guard version (traditional brass military), and Boston's rendition (rock), all of which not only keep the intent and flavour of the song, but allow for the artists to put their own flavour to it, in a respectful and not horrible manner...
One last thought, just to get it out there... Yes, the melody happens to be an old British song. A drinking song, if story is to be believed... And that always seems to come up (ha ha, we borrowed our anthem)... Firstly, we're not the first to do that... The Workers Marsaillese (sp?), and the Internationale were used by many countries for many years... Secondly, if you really want to get down to it, every aspect of the English language is borrowed (if memory serves me correctly, a mixture of Latin and Germanic language), so technically, nearly every country with a spoken language has borrowed bits and pieces from someone else...
But I must go plow some snow now. BTW, who did the anthem this year at the Super Bowl? I don't even know who played, let alone that...