User blog comment:D. Cello/Assassinews 10/11 -- Desmond's Ancestry Revealed/@comment-1884750-20111014202928/@comment-90.203.102.58-20111014205810

Hmm whether Ezio and Altair were originally related or not, Aetius has a point, I picked up on that too

It has always been known from ACII that Eagle Vision was a 'sense'/'gift' that the desendants of 'TWCB' and Humans (when sharing parentage of both) had, and i did think it odd that suddenly everyone has it locked away.