Question: The KL-43 was paraded in front of cameras during what political scandal that occurred during the second term of the Reagan administration?

Context articles: Wedtech scandal
Iran–Contra affair
Debategate
Timeline of the Iran–Contra affair
2015 Cash for Vote Scam
Watergate scandal
KL-43
List of political scandals in Chile
Donald Regan
Chapman B. Cox

The Wedtech Scandal was the name of an American political scandal in the Reagan administration involving the award of government contracts.
 It was first brought to light in 1986.
The Iran–Contra affair (Persian: ماجراي ایران-کنترا‎ ‎ , Spanish: "caso Irán-Contra" ), also referred to as Irangate, Contragate or the Iran–Contra scandal, was a political scandal in the United States that occurred during the second term of the Reagan Administration.
 Senior administration officials secretly facilitated the sale of arms to Iran, which was the subject of an arms embargo.
 They hoped, thereby, to fund the Contras in Nicaragua while at the same time negotiating the release of several U.S. hostages. Under the Boland Amendment, further funding of the Contras by the government had been prohibited by Congress.
Debategate or briefing-gate was a political scandal affecting the administration of Ronald Reagan; it took place in the final days of the 1980 presidential election.
 Reagan's team had somehow acquired President Jimmy Carter's briefing papers, classified top secret, that Carter used in preparation for the October 28, 1980 debate with Reagan.
 The briefing papers were never specified to be vital strategy memos or just routine position papers.
 This leak of campaign papers was not divulged to the public until late June 1983, after Laurence Barrett published "Gambling With History: Reagan in the White House", an in-depth account of the Reagan administration's first two years.
The Iran–Contra affair was a political scandal in the United States that came to light in November 1986.
 During the Reagan administration, senior administration officials secretly facilitated the sale of arms to Iran, the subject of an arms embargo.
 Some U.S. officials also hoped that the arms sales would secure the release of hostages and allow U.S. intelligence agencies to fund the Nicaraguan Contras.
 Under the Boland Amendment, further funding of the Contras by the government had been prohibited by Congress.
The 2015 cash-for-votes scam was a South Indian political scandal, the second scandal of its kind since the 2008 North Indian cash-for-votes scandal.
 The 2015 political scandal started off when the Telugu Desam Party Leaders of Telangana state were caught in a video footage, aired in the media, offering bribes to a nominated MLA for his vote in the 2015 elections of the Telangana Legislative Council.
 The Telugu Desam MLA Revanth Reddy was arrested by the Telangana Police when he was offering Rs. 50 lakhs to the nominated MLA Elvis Stephenson.
 Reddy was then presented before the court of justice and sent to jail.
 Similarly, the phone conversation, which was quoted as the voice of N. Chandrababu Naidu, the Andhra Pradesh Chief Minister, with the same nominated MLA was aired in the news media.
The Watergate scandal was a major political scandal that occurred in the United States in the early 1970s, following a break-in at the Democratic National Committee (DNC) headquarters at the Watergate office complex in Washington, D.C. on June 17, 1972, and President Richard Nixon’s administration’s attempted cover-up of its involvement.
 When the conspiracy was discovered and investigated by the U.S. Congress, the Nixon administration’s resistance to its probes led to a constitutional crisis.
The KL-43 is a portable, electronic cipher device used by the United States and the NATO from the early 1980s.
 The machine, manufactured by TRW, is an adaptation of language translator technology, and includes a keyboard for input and an LCD for output.
 It also contains a built-in modem, a telephone coupler, and the facility for connecting to a printer.
 A version of the KL-43 was famously used by Oliver North to communicate with his assistant, Fawn Hall, and others while managing clandestine operations in Nicaragua in support of the "Contra" rebels.
 The device was paraded in front of cameras during the Iran-Contra congressional hearings.
A political scandal is a kind of political corruption that is exposed and becomes a scandal, in which politicians or government officials are accused of engaging in various illegal, corrupt, or unethical practices.
 A political scandal can involve the breaking of the nation's laws or moral codes.
Donald Thomas "Don" Regan (December 21, 1918 – June 10, 2003) was the 66th United States Secretary of the Treasury from 1981 to 1985 and the White House Chief of Staff from 1985 to 1987 in the Ronald Reagan Administration.
 He advocated "Reaganomics" and tax cuts to create jobs and stimulate production.
 Before serving in the Reagan administration, Regan served as chairman and CEO of Merrill Lynch from 1971 to 1980.
 He had worked at Merrill Lynch since 1946, and before this he had studied at Harvard University and served in the United States Marine Corps, achieving the rank of lieutenant colonel.
Chapman Beecher Cox (born 1940) was United States Assistant Secretary of the Navy (Manpower and Reserve Affairs) in the first term of the Reagan Administration and General Counsel of the United States Department of Defense during Reagan's second term.