Question: What country did the AMIA bombing and Alberto Nisman share?

Context paragraphs:
Roberto Zaidemberg: Roberto Zaidemberg is an Argentine attorney and a member of DAIA.  He worked as a vice president of DAIA and represented Jewish community in Argentina in connection with the bombing of AMIA.

Patricio Miguel Finnen: Patricio Miguel Finnen (Alias: Patricio Fonseca) was an Argentine intelligence operative - a SIDE agent and intelligence director who became publicly known because of the AMIA bombing investigation.

Ibrahim Hussein Berro: Ibrahim Hussein Berro (Arabic: ابراهيم حسين برّو‎ ‎ ) (c. 1973 – 1994) was a member of Hezbollah allegedly responsible for the 1994 AMIA Bombing in Buenos Aires, which killed 85 people.  Berro, a 21-year-old citizen of Lebanon, is accused by Argentine, U.S. and Israeli officials of blowing up the headquarters of Argentina's Jewish community.  Hezbollah describes the accusations as "categorically false".

Oklahoma City bombing: The Oklahoma City bombing was a domestic terrorist truck bombing on the Alfred P. Murrah Federal Building in downtown Oklahoma City, Oklahoma, United States on April 19, 1995.  Perpetrated by Timothy McVeigh and Terry Nichols, the bombing killed 168 people, injured more than 680 others, and destroyed one-third of the building.  The blast destroyed or damaged 324 other buildings within a 16-block radius, shattered glass in 258 nearby buildings, and destroyed or burned 86 cars, causing an estimated $652 million worth of damage.  Extensive rescue efforts were undertaken by local, state, federal, and worldwide agencies in the wake of the bombing, and substantial donations were received from across the country.  The Federal Emergency Management Agency (FEMA) activated eleven of its Urban Search and Rescue Task Forces, consisting of 665 rescue workers who assisted in rescue and recovery operations.  The Oklahoma City bombing was the deadliest terrorist attack on American soil until the September 11 attacks six years later, and it still remains the deadliest incident of domestic terrorism in United States history.

18F (demonstration): The 18F was a demonstration that took place in Argentina on February 18, 2015, one month after the death of prosecutor Alberto Nisman.  Nisman was investigating the 1994 AMIA bombing, a terrorist attack, and accused the president Cristina Fernández de Kirchner of covering up Iranian suspects.  He was found dead at his home the day before he could address the Congress, and his death was still an unsolved case at the time of the demonstration.  It was attended in Buenos Aires by 400,000 people, during a torrential storm.

18-J: 18-j is a 2004 Argentine docudrama film.  The motion picture is a collection of ten, ten-minute shorts, by ten Argentine directors.  The film focuses on the July 18, 1994, bombing of the AMIA Building in Buenos Aires, where 86 people were killed and 300 others wounded.  The perpetrators were never caught.  AMIA is the Argentine Israelite Mutual Association, a charity, and the attack is considered the largest single incident of terrorism against Jews since World War II.

Alberto Nisman: Natalio Alberto Nisman (5 December 1963 – 18 January 2015) was an Argentine lawyer who worked as a federal prosecutor, noted for being the chief investigator of the 1994 car bombing of the Jewish center in Buenos Aires, which killed 85 people, the worst terrorist attack in Argentina's history.  On 18 January 2015, Nisman was found dead at his home in Buenos Aires.

AMIA bombing: The AMIA bombing was an attack on the Asociación Mutual Israelita Argentina (AMIA; Argentine Israelite Mutual Association) building.  It occurred in Buenos Aires on 18 July 1994, killing 85 people and injuring hundreds.  It was Argentina's deadliest bombing ever.  Argentina is home to a Jewish community of 230,000, the largest in Latin America and sixth in the world outside Israel "(see Demographics of Argentina)".

El fiscal (R. S. Pratt novel): El fiscal (Spanish: "The prosecutor" ) is a 2015 detective fiction novel from Argentina, freely based on the death of Alberto Nisman.

Death of Alberto Nisman: The death of Alberto Nisman, an Argentine lawyer who specialized in international terrorism, became known in the early hours of Monday, January 19, 2015.  He was found shot in the head in his apartment in the Torre del Parque building in the upscale Le Parc Puerto Madero development in the neighborhood of Puerto Madero in Buenos Aires.

Supporting paragraphs: Alberto Nisman AMIA bombing
Answer: Argentina