If you are a value investor, today's big plunge in share price for Cliffs Natural Resources (CLF -0.14%) should pique your interest enough to take a deeper look into the company's operations. Now trading below below a 12 times forward price-to-earnings ratio, is this an entry point investors should take advantage of? The company is a leading seller of two critical components in steel manufacturing, and the need for steel doesn't appear to be disappearing any time soon. Yes, this industry is cyclical, but a trough like this is just too hard to ignore. Check out the video for Motley Fool analyst Taylor Muckerman's take on the scenario.