I think this is the same article that was written a month ago about not having enough teachers. Apparently these folks slept through economics 101. A shortage of skilled labor is directly related to wages and benefits. If the wages and benefits are high enough there will be plenty of workers even for dangerous occupations like mining. I suppose if there aren't enough workers the mining industry can continue the cheap labor tactic of importing more immigrants. Some school districts even hired immigrant teachers from Mexico rather than increase wages and benefits. Lack of workers is not the issue, depressed wages is. Importing cheap labor from third world countries is worse than exporting our manufacturing to low wage countries, because tax payers have to subsidize all workers paid below subsistence level.