For radar systems as presently understood to detect and track a B-2, an enormous energy supply would be needed to power the search radar.

CENTERFORSECURITYPOLICY: Roundtable Discussion On The B-2 Bomber

There are real problems with security of supply and this is not yet on the radar screen.

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Even if such a supply could be affordably produced in the USSR, no one has been able to devise a radar that could handle the power required.

CENTERFORSECURITYPOLICY: Roundtable Discussion On The B-2 Bomber