Human

Well  by dancer Hunter S. Thompson meant a group of mindless people as can be seen in some of these lyrics "And sometimes I get nervous When I see an open door (taking different opportunities)
Close your eyes, clear your heart
Cut the cord" (be your own person)
the "dancer" is nervous to be away from the group and stop following the "steps" as in what americans are raised to know, but he cuts the cord as a human. Another thing in daily life is the loss of culture.
"Pay my respects to grace and virtue
Send my condolences to good
Give my regards to soul and romance
They always did the best they could

And so long to devotion
You taught me everything I know
Wave goodbye, wish me well
You've gotta let me go"

When we lose our individuality we lose all of these things. Are we human? (individuals) or are we dancer (identy-less groups of people)

Brandon Flowers is a beautiful puppet.

I think human is more about whether you are a leader or a follower, or in this case the puppet or puppeteer.  In the beginning, Brandon is the puppet, hence the phrases "when the call came down the line"(command on the strings), "up to to the platform of surrender" (a stage, where he's surrendered control).  He then braces himsef and "cuts the cord", his strings, and takes control.  Are we human (puppeteer) or are we dancer (puppet)?

Well, what i think is. Are we human or...are we dancer!!! And that, my lovers. Is what the song is about.

despite what bran-flo says about this being a nod to hunter s. thompson, i think it's more a response to the way sam's town was received (especially because they seem to have been sitting on this one since sam's town was released). i think he's subtly digging at the people who slagged ST (it was an album which was quite pining, heart-felt and nostalgic) and compared it to the dance-friendly hot fuss. It just seems like a light dig at the people who rather they were a "dancer" band (hot fuss), rather than a purely human one (sam's town)

http://www.thekillersfansite.com

Thanks to Sam for the flashing K