US authorities have engaged in the torture of detainees, and the nation's "highest officials" bear some of the responsibility, according to a report (PDF) released on April 16 by the Constitution Project, a bipartisan legal advocacy and watchdog group. The Project's Task Force on Detainee Treatment was established after US President Barack Obama announced in 2009 that he opposed a proposal by Senate Judiciary Committee Chairman Patrick Leahy to set up a "truth commission" to investigate controversial actions of the Bush administration, including justifications for the Iraq war, warrantless wiretapping and detainee treatment. The task force members reached their conclusions after a two-year process, which included examination of public records and interviews with former detainees, military and intelligence officers, interrogators, and policymakers.

Al-Shabaab radicals launched an assault on April 14 against Somalia's Supreme Court. The attack, resulting in at least 35 deaths, was one of the worst attacks in years for the country's capital of Mogadishu. According to the Somali government, nine men were involved in the attack against the court, six of whom detonated explosive vests. Al-Shabab retained control over most of Somalia's capital before Somali forces and the African Union forced the militants out of Mogadishu in 2011. Since being forced out of the capital, al-Shabaab has carried out a series of bomb attack in the city, with the new coordinated attack amounting to the largest one since 2011. The Somali government reported that all of the attackers died, with some killed by security forces.

UN Special Rapporteur on human rights and counter-terrorism Ben Emmerson on April 12 called on the international community to protect Burkina Faso from terrorism, warning that attacks on the country's infrastructure or security would undermine social cohesion within the country, impair inward investment and further destabilize the region. Burkina Faso is particularly vulnerable due to its geographical proximity to the conflict in Mali, with which it shares a border. Emmerson described the country's role in regional peace negotiations:

A Pakistan court on April 5 extended by six days the bail granted to former president Pervez Musharraf, who faces charges of detaining judges during his time in office. The Islamabad High Court also ordered Musharraf to post bond for Rs 500,000, or just over $5,000, and to appear for his next hearing scheduled for April 18. Musharraf has also been named as a suspect in the assassination of former prime minister Benazir Bhutto in 2007, and may face charges in connection with the murder of Baluch tribal leader Nawab Akbar Bugti in 2007.

Italian president Giorgio Napolitano on April 5 pardoned US Air Force Colonel Joseph Romano of his conviction related to the US Central Intelligence Agency's abduction and "extraordinary rendition" of Egyptian cleric and terror suspect Osama Moustafa Hassan Nasr AKA Abu Omar. Joseph Romano was security chief of northern Italy's Aviano air base where Nasr was abducted prior to being flown to Egypt. Nasr was seized on the streets of Milan in 2003 by CIA agents with the help of Italian operatives, then allegedly transferred to Egypt and tortured by Egypt's State Security Intelligence before being released in February 2007. The US Department of Defense welcomed the news of Napolitano's pardon.

UN High Commissioner for Human Rights Navi Pillay on April 5 called for US authorities to close down the Guantánamo Bay prison camp, emphasizing the continued indefinite incarcerations of many detainees as a clear violation of international law. Of the 166 detainees in Guantánamo, about half have been cleared for transfer, either to home countries or third countries for resettlement, while only nine of them have actually been charged or convicted of crimes. Pillay stressed that those who have been cleared for release must be released immediately, claiming the US government's continued detention of these individuals is a violation of the International Covenant on Civil and Political Rights (PDF). The High Commissioner also expressed concern about the National Defense Authorization Act of 2013, which she says has created obstacles for the closure of Guantánamo as well as for the trials of detainees in civilian courts.

Approximately 250 Yemeni demonstrators gathered April 1 in front of the US Embassy in Sanna to demand the release of Yemeni detainees held at Guantánamo Bay. According to media sources, 90 out the 166 remaining Guantánamo detainees are Yemeni, and several have been detained for more than a decade. Protesters reportedly decried conditions at the prison, citing reports of inhumane treatment, water deprivation and forced feeding. Protesters also held up photos of their detained relatives and denounced treatment allegedly leading to several suicides, including that of Salah Al-Salami, who committed suicide while in detention in 2006. The protest prompted dispatch of the Yemeni military. Among the Yemeni detainees is Abd al-Rahim al-Nashiri, who is accused of bombing the USS Cole while it was in port in Yemen in October 2000.

Human Rights Watch (HRW) on March 28 called on the government of Sri Lanka to begin its investigation into war crimes by examining the role of its own Deputy Minister of Resettlement. HRW alleged that Deputy Minister Vinayagamoorthy Muralitharan, known as Colonel Karuna, is a former leader of the the Liberation Tigers of Tamil Eelam (LTTE), which is accused of war crimes committed during a 26-year civil war. Ultimately, Karuna and his unit changed sides, joining forces with the Sri Lankan government. In March, Karuna called for an investigation of war crimes by the LTTE. HRW released a statement, saying, "Karuna's call for war crimes investigations should not allow him to airbrush out his own role in atrocities. His LTTE forces were implicated in some of Sri Lanka's most horrific abuses, so the government's long-stalled war crimes investigations might as well begin with him."