I would say one of the most valuable languages would be Arabic, especially for my intended field in cyber security. If I work for a governmental agency like the NSA then I think Arabic would be a valuable asset. However, if I work in the private sector (which I intend on doing because they pay way more), then I think Arabic would be less valuable job-wise, but more valuable in the deficiency of those that speak Arabic in the United States. Or rather, there seems to be a deficiency. But maybe there is not.