Advisor: Milord, the princess might be taken hostage or her life be put in jeopardy.
Longshanks: Oh, my son would be most distressed by that. Uh, but in truth, if she were to be killed, we would soon find the king of France a useful ally against the Scots. You see, as king, you must find the good in any situation.
One of Longshanks' advisors is telling him that sending the princess to be an emissary to Wallace could result in her becoming his hostage.