The new commissioner of the New York Police Department (NYPD) William Bratton announced April 16 the disbanding of a surveillance unit used to spy on Muslim communities. The Demographics Unit, established in 2003, utilized plainclothes detectives to map communities both inside and outside New York City, tracking the movements and conversations of Muslim individuals. According to the New York Times, the unit, composed of around 12 detectives, was created to look for "hot spots" of radicalization that could theoretically provide early warning of possible terrorist activities. Surveillance focused on 28 "ancestries of interest." At a pretrial examination (PDF) before the US District Court for the Southern District of New York, Commanding Officer of the Intelligence Division Thomas Galati admitted that the program had never generated a lead. The tactics of the unit had drawn significant criticism and generated two federal lawsuits.

The Iraqi Justice Ministry on April 15 temporarily closed Abu Ghraib prison due to security concerns. Reports indicate that Iraqi authorities are concerned about the growing power of a Sunni-backed insurgency within the Anbar province, in close proximity to the prison grounds. A government official reportedly announced wednesday, however, that the prison's closure was temporary until security issues can be resolved. In the meantime, the government has transferred approximately 2,400 inmates to other high security prisons throughout the nation.

An Egyptian court on April 14 ruled that the militant organization Ansar Bayt al-Maqdis (BBC backgrounder) be officially considered a terrorist group. Ansar Bayt al-Maqdis, which means "Warriors of Jerusalem," has claimed responsibility for the majority of attacks on Egyptian military and police that have occurred since former President Mohamed Morsi was ousted in July. The US Department of State on April 9 also designated Ansar Bayt al-Maqdis as a terrorist organization. Egypt's military said that this designation will not change its strategy toward fighting the group, but it will make punishments more harsh for members of the group who are captured.

An official from the capital district government of Bogotá on March 28 called upon Colombia’s national government to open debate on broadening the policy of cannabis decriminalization. "We really need leadership from the Congress and the government to regulate the medicinal and recreational use of marijuana," said secretary general of the Bogotá mayor's office, Susana Muhamad. Despite efforts by the previous president Alvaro Uribe to roll back the policy, since 1994 cannabis has been decriminalized in small quantitites—recently established by the judiciary as up to 22 grams. However, sale and cultivation remain illegal. Muhamad appealed to current President Manuel Santos to examine lifting these limitations.

On April 7 a court in La Ligua, in Chile's Petorca province, Valparaíso region, convicted agronomist Rodrigo Mundaca of slander and sentenced him to 541 days in prison for accusing former government minister Edmundo Pérez Yoma of water usurpation. Mundaca, the secretary of the Movement in Defense of Water, Land and the Environment (Modatima), also faces a fine. According to current Modatima spokesperson Luis Soto, the court's decision won't stop the group's activist work. He said Modatima would take the case "to the Valparaíso Appeals Court, and if we aren't successful there, we'll go to the Supreme Court."

A large part of Argentina's labor movement participated a 24-hour general strike on April 10 to demand increases in wages and pensions and to protest the economic policies of President Cristina Fernández de Kirchner. With support from the Automatic Tramways Union (UTA) and three airline workers' unions, the strike shut down surface trains, subways, air service, schools and businesses in many parts of the country. Union leaders said the action was 90% effective, and the Argentine business consulting firm Orlando Ferreres & Asociados S.A. set the losses for the day at almost $1 billion. Government officials and Fernández supporters downplayed the significance of the strike, charging that relatively few workers actively participated and that people stayed home only because transportation was cut off by the UTA and by roadblocks that leftist parties and groups had set up.

On April 9 the California-based technology company Hewlett-Packard (HP) announced that it was paying a $108 million fine to the US Justice Department and the US Securities and Exchange Commission (SEC) to end an investigation into subsidiaries in Poland, Russia and Mexico that allegedly paid bribes to officials. The HP subsidiaries "created a slush fund for bribe payments, set up an intricate web of shell companies and bank accounts to launder money, employed two sets of books to track bribe recipients, and used anonymous email accounts and prepaid mobile telephones to arrange covert meetings to hand over bags of cash," according to a statement by the Justice Department. HP said the corruption "was limited to a small number of people who are no longer employed by the company."

US citizen Alan Gross, serving a 15-year prison term in Cuba for his work there as a contractor for the US Agency for International Development (USAID), held a liquids-only hunger strike from April 3 to 11 to protest his treatment by both the Cuban and US governments. According to Scott Gilbert, Gross' Washington DC-based lawyer, the prisoner started his hunger strike after he learned of an April 3 Associated Press report on ZunZuneo, the "Cuban Twitter" service that USAID launched after his arrest in December 2009. Gross was charged with seeking to subvert the Cuban government by supplying dissidents with Internet technology, and ZunZuneo had the potential to damage his legal case.