There’s a lot of really bad gouge in this thread.
The fact is that most U.S. citizens can obtain the highest level of clearance, and be read into the most sensitive compartments. The question is how much the government can trust you with that information.
How is anything above bad gouge? You're next three paragraphs basically reword what I said. You need to be trustworthy. You need to live your life in such a way that you can be trusted not to be swayed by external influences. etc. etc.
As for the the other things said about jets, that's all correct also. You can join the Navy already having a TS-SCI and still not be eligible for jets. Because your knee to butt length is too long, you're restricted to multi-piloted aircraft because of a medical issue, you don't do better than 50% of your classmates in primary, there are no jet slots the week you finish primary, etc. etc. The only thing that you can control is how well you come prepared to your flights, the rest is out of your control. But if you can't obtain a TS then you can't fly jets in the Navy. Thats just a statement of fact. Bottomline is control what you can and don't worry about the things you can't. My original post was just to point that out. If you are going to be bitter and disgruntled if you don't get jets, well you aren't entering the process with the right mind set. As a former student control officer at a VT squadron (and a guy that originally wanted jets) I should have some street cred.
As I also said above, I know several people flying grey aircraft in the Navy with circumstances that raise an eyebrow. I know several that were dual citizens, and even a couple that did not start life as Americans. The OP should keep hope and stay positive. It is potentially doable.