as we first told you last week, rowe the former host of "dirty jobs" has come under fire for narrating a walmart ad pledging to buy more american made goods. >> we will build things and build families and build dreams because work is a beautiful thing. >> now, to understand some of the outrage over rowe's role in that commercial, you first need to know more about how rowe got to where he is today. >> what is this? >> mike rowe doesn't mind getting dirty. the former host of the discovery channel's hit reality show "dirty jobs" has pretty much seen it all. >> welcome to hell. >> from working at a sewage treatment plant to drilling for oil to caring for camels. >> 98.6. this camel's a person. >> all in the name of showcasing the grimiest, slimiest, not to mention smelliest jobs in the