sky

With some parts, you are correct. There are certain systems and tasks that won't be outsourced, but sakky is correct that joint programs are certainly the new direction in the aerospace field. Many new programs, especially very large ones, rely on international collaboration. With appropriate export control deals in place, there are very few things that will never be released outside of the US.

More importantly, the aerospace and defense industries are not the ones you want to get into if job security is your number one concern. Defense, commercial, and scientific (ie. NASA) industries have historically been very cyclical. There have been times where hiring has been intense with a great outlook, other times, the aerospace industry has been a joke (ie. "would you like fries with that?"). In other words, do not rely on the defense industry for job security. We have been in good times lately, but it would be foolish to think that will continue forever.