User blog comment:Neowitch/689 - I Killed Your Father/@comment-4374114-20121120203234

I'm not sure if it is the translation or if it was really meant that way but from what I read Smile is used for artificial DF and Las is trying to get his hands on SAD. My thought is if Smile makes devil fruits maybe SAD is what is used to remove those artificial devil fruits. Law may be trying to get a hold of something that could counter that Yonko's army, without the Yonko even knowing that there could be a weakness with his army. But again this all depends on the translation.