#599715
For reference, it's covered on page 11 of the 2E rulebook under Facing Dilemmas (emphasis mine):
When a card is selected to perform an action and that card cannot perform that action, that action is ignored. For example: Koval, Chairman of the Tal Shiar is randomly selected to be stopped by Pinned Down. Since he cannot be stopped by dilemmas, the action of stopping him is ignored. When a card has a player choose a card to perform an action, if that card cannot perform that action, that card cannot be chosen. For example: if a player’s only Diplomacy or Leadership personnel is Lore, The One, his or her opponent cannot choose him to be stopped by Tense Negotiations.
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