Everybody's commenting on "cheap labor". Cheap for who? These students have an opportunity to make a ton more money than they would working summer jobs in their home country. They get to take a lot of that money home. They get to travel. They get to see Alaska. They get to improve their English language skills. And they have 1 month at the end of their visa that they can't legally work - it's reserved only for travel. 

Why are all the comments about "cheap labor" or "exploitation"? What about the opportunity it provides to others? Nobody is forcing anyone to do anything or holding on to their passports - these students can quit and leave to go home at any time they want. Too much arm-chair doom-and-gloom and too many fake economists here.