Need YOUR opinion, career-related question.

[DFA]

I'm on my last week of 2nd year of Electronic & Telecommunications Engineering at the best engineering school in Panama. I love what I study. I flunked a subject last semester but I'm working hard on it and should be back up on my feet after the summer and start 3rd year with no spots in my record.

Yesterday, I was offered to take a (dumb easy) test at the US Embassy on friday, they're giving FULL scholarships for:
Industrial Engineering
Systems Engineering
Computing Engineering
Astronautical Engineering
Aeronautical Engineering

The only one that tickled my fancy was Astronautical Engineering, but it still doesn't excite me as much as what I'm currently taking. Some things I've thought about:
- It's a great opportunity to leave this hellhole, something I've wanted to do since I was like 9 years old.
- I'll probably land a job much more easily than I will if I graduate here, and with better pay.
- I don't want to waste years of my life into studying something I don't like that much.
- If I ever wanted to return back home... what the hell is a rocket scientist good for in a country that doesn't make any? I'm aware that engineers are very versatile in the entry-level job area, but I won't have much room for growth unless I start taking up additional majors that are more related to local industries.

Long story short,
On one side, I have a free, all expenses paid ride to the US to study something that kind of interests me.
On the other side, I can stay here and study what I love, maybe look around elsewhere for a similar opportunity that lets me continue studying what I love.

What would you do?