Help sick people or vacation on Mars?

I've been thinking about this for a while. I was watching National Geographic or one of those similar channels, and they were talking about the whole travel into space thing, the possibility of sending tourists to the moon or Mars, and how many companies are working on developing technology for such things. My big question is why??? We have people dying around the world, we are destroying our planet, we are facing a crisis of massive proportion with global warming and overpopulation and destruction of necessary natural resources, so why in the world are people funneling millions of dollars into "space programs"? Shouldn't they be trying to develop ways to heal our sick, save our planet, or develop medicines or new technologies that can solve existing problems? Hell, I mean, we can't even live on this planet without destroying it, why should we be looking to send people onto another one? We're going to just end up destroying that one too.

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