national security, exactly. if intel makes everr'one's chips like the old days then intel, that old friend the US government helped shield from bankruptcy... .. maybe intel can slip in a little extra circuit here or there, won't be used for anything NORMALLY but maybe if things got bad maybe hypothetically the NSA could have a teensy little backdoor added on. conversely the assumption is this is what already occurs in chinese chips, which makes the US govt want even harder to centralize all chip making under the NSA's home turf