song, they cheer right through the song, they started doing this in the 1980s. some people are taking offense to this, they argue it is disrespectful to our vets, among other things. steve brown has been checking this out, at the united center in chicago. i'm guess thank black hawks fans, they like this tradition, right? >> they absolutely do, they think it's an integral part of the game. as a matter of fact, i'm told the old stadium, chicago stadium, there were times when the crowd got so loud you couldn't hear the national anthem at all but it's become part and parcel of going to a black hawks game. that when the national anthem plays, that's when the cheering begins. it's all through the song, not just at the end at a lot of sports venues. martha: is there nationalet cet that are supposed to be honored? >> there are rules in the u.s. book of laws, at least suggested observations, or otheranses of the national anthem and rob otto, a sports blogger from