Righteousness is America’s aegis, and God its sentry
Freedom is dependant upon security.
From an LDS perspective, righteousness is the ultimate aegis, and God its ultimate sentry.
That is to say, as a nation we must do all we can to have security in order to safeguard our freedoms.
But to trust alone in the arm of the flesh (Government) for our complete protection is tantamount to idolatry.
Only God can keep America safe and secure.
To the degree America as a whole turns its back on God and his commandments, is the degree we become less secure, in other words, vulnerable to terrorists attacks.