The coming wireless spectrum apocalypse and how it hits you

In the wireless industry, it seems, you can never have too much spectrum. Even AT&T and Verizon Wireless, which together control about 70 percent of the wireless market, say they need more of it. But even if you have enough spectrum, the big guys can use their leverage with suppliers to make it darn difficult for you to use it. Can you imagine what would happen if the industry giants further solidified their hold on the market by hoarding even more spectrum? Bad things, those underdogs would assure you, starting with higher costs for consumers and fewer innovations. And that, they say, is why regulators and judges need to intercede. But how many competitors are needed in a market? Are two enough, or perhaps three? It's this question that the Federal Communications Commission is trying to answer as it looks at some of the biggest in front of it today.