If I were Sam, I would let Danny and Jason visit with each other as long as there were at least two body guards/security people present. Sort of a supervised visitation thing. As far as Sam's other concern, that Jason could just take off again, just warn Danny it could happen. Have Jason explain it, too, as well as the danger in being around him and thus the need for security. Danny shouldn't be denied seeing his father (even if it is Jason 😒).