Originally Posted by
Willard Whyte
I don't think there's a technical reason why the B-1B can't carry a nuclear weapon any more, a GBU-31 (JDAM equipped Mk 84) is similar in size and weight to a B61.
Of course, it would be a treaty violation for it to do so as because, as has been pointed out/linked to, it has been declared a conventional bomber.
May have had the PAL removed as part of treaty compliance......