[okie01]

Legal question: Can either Hilary, as former Sec of State and potential Commander in Chief, or Obama as Commander in Chief, be prosecuted by the military for violations of national security...

No. But Obama can be impeached. As can Hillary -- if elected.

[Missouri gal]

Obviously, neither Obama nor Clinton will face impeachment by this Congress. That's why legal alternatives are needed.
One or more states attorney general could prosecute. What about the possibility of one or more states barring her from the ballot on the grounds she is not eligible to serve as CIC?