A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
Uncovered Plans
Political Open, [2G]: Target another player. You accuse him of covertly preparing for war. Choose one to three random cards from his hand and show them. For each of these cards that his a Weapon or has a Battle or Engage ability, he loses 1 Honor, plus 1 additional Honor if your Allegiance is Progressive. For each other shown card, he gains 1 Honor.
I have Progressive in play and my opponent shows 3 cards with a Battle ability. Does my opponent lose 4 or 6 honor?
Uncovered Plans
Political Open, [2G]: Target another player. You accuse him of covertly preparing for war. Choose one to three random cards from his hand and show them. For each of these cards that his a Weapon or has a Battle or Engage ability, he loses 1 Honor, plus 1 additional Honor if your Allegiance is Progressive. For each other shown card, he gains 1 Honor.
I have Progressive in play and my opponent shows 3 cards with a Battle ability. Does my opponent lose 4 or 6 honor?
He loses 4.
The one additional is after the "1 for each" is totaled. Otherwise, if the intended loss was 6, it would have said, "For each... he loses 1 Honor, or 2 Honor if..."