That has been the main argument of from people who think that you can find out Clark kent is Superman is because you can see through glasses. I assert that you really can't. Here's why: [video=youtube;wBO3jfae3y0]https://www.youtube.com/watch?v=wBO3jfae3y0[/video] There are look alikes. Charlie Chaplin himself once entered a look alike contest and he didn't win. And Superman has made it an art form to have Clark have completely different mannerisms to throw people off. Now what would top it off is the voice. BUT Superman does know how to disguise his voice. So, I don't agree with that argument, that you can see through glasses.