Originally I thought linking, but it would be more than that, I think. Remember, Asmo said he thought Moiraine or Egwene could work out linking if they tried. It has to be more complicated than that. I'm leaning towards the theory that the seals cause the taint. Once the taint is gone, the DO's free, and the men have 24 hours to find out how to channel. Remember, you cannot force the power. You must surrender. Surrendering for their pompous selves would probably be as bad as for Nynaeve. I still hate Cadsuane, but less since reading most of PoD. However, she is the best person for the job of surrendering..no failure excepted!