Answer:
Lt. Colonel Oliver North was implicated in the Iran-Contra Affair.
Step-by-step explanation:
North was a member of the National Security Council in the 1980s and was noted for his involvement in the Iran-Contra Affair. The scandal involved clandestine aid in the form of arms sales to the Islamic Republic of Iran to try to secure the release of American hostages in Lebanon. Oliver North also formulated a second part of the plan, which involved the sale of arms in support of the Conservative rebels in Nicaragua (in violation of the so-called "Boland Amendment," a bill passed in Congress that prevented the US government from intervening in any way in that country).