The US Supreme Court ruled (PDF)  4-2 on June 19 in Ziglar v. Abbasi that Muslim men detained in the aftermath of the 9-11 attacks cannot sue top US officials. The three consolidated cases center on the arrest and detention of men illegally present in the US at the time of 2001 terror attacks. The men claimed that former US attorney general John Ashcroft, former FBI director Robert Mueller and a former Immigration & Naturalization Services commissioner confined them despite knowing they had no ties to terrorism. In an opinion by Justice Anthony Kennedy, the court noted that the men were mistreated:

Attorneys for Guantánamo detainee Abu Zubaydah have filed a lawsuit against the two psychologists, James Mitchell and Bruce Jessen, who developed the harsh interrogation techniques used by the CIA, including waterboarding and sleep deprivation. The UK human rights group Reprieve announced the case on June 7. The attorneys are seeking to subpoena the psychologists in order to uncover evidence about the torture that allegedly went on in Poland. According to US law, a federal district court may "order discovery of documents and testimony for use in a foreign proceeding from any person who resides or is found in the court's district." The case will be heard in the US District Court for the Eastern District of Washington. The CIA had detained the plaintiff in a secret Polish prison from 2002 to 2003 on suspicions that he was a "facilitator" for al Qaeda. Zubaydah has been held at Guantanamo since 2006. In April 2016 a federal judge ruled that another lawsuit against the same psychologists with different plaintiffs could proceed.

More than 850 family members of victims of the 9-11 attacks filed a lawsuit (PDF) March 20 against the Kingdom of Saudi Arabia, alleging that the Saudi state provided support to al-Qaeda in multiple ways. First, it alleges that Saudi Arabian charities ran terrorist training camps in Afghanistan, working hand-in-hand with Osama bin Laden. The suit also claims that the Saudi government directly aided al-Qaeda by providing passports and transportation across the globe. Finally, the suit contends that certain Saudi officials worked with the hijackers in the US for the 18 months leading up to the attacks. The suit seeks unspecified damages, with the primary motive to hold Saudi Arabia accountable for the attacks.

President Donald Trump has given the CIA "secret new authority" to conduct drone strikes against suspected terrorists, the Wall Street Journal reported March 13, citing US officials. This is said to depart from the Obama administration policy of a "cooperative approach" to drone strikes, in which the CIA used surveillance drones to locate suspected terrorists and the Pentagon then conducted the actual strike. The drone strike that killed Taliban leader Mullah Mansour in May 2016 in Pakistan was named as an example of that "hybrid approach." The report asserts that the Obama administration had the Pentagon carry out the strikes "to promote transparency and accountability." The CIA, operating under covert authority, wasn't required to report its drone strikes. The Pentagon, in most cases, was required to do so.

Nils Melzer, the UN Special Rapporteur on torture, on Jan. 30 urged US President Donald Trump not to reinstate torture policies. Melzer referenced the 2014 US Senate Intelligence Committee Report (PDF), which stated that the Central Intelligence Agency's use of "enhanced interrogation techniques was not an effective means of acquiring intelligence" and "rested on inaccurate claims of their effectiveness." Melzer criticized Trump's pledge to reinstate torture by asserting that "waterboarding" is a form of torture, that the use of torture is not legally or morally acceptable, and that the use of torture is prohibited by the Convention against Torture, the International Covenant on Civil and Political Rights and the Geneva Conventions. Melzer concluded:

US President Barack Obama granted 64 pardons and 209 commutations Jan. 17, including commuting the sentence of Chelsea Manning. Manning worked as a low-level intelligence analyst where she leaked documents regarding the Iraq and Afghanistan wars in 2010 to WikiLeaks which exposed abuses of detainees and civilian deaths. The commutation will release Chelsea Manning on May 17. Several Republican leaders have criticized the commutation, including Rep. Mac Thornberry, Sen. John McCain, and Speaker Paul D. Ryan, stating that Manning's actions risked national security. Manning's lawyers stated that "Her 35-year sentence for disclosing information that served the public interest and never caused harm to the United States was always excessive, and we're delighted that justice is being served in the form of this commutation." A White House Petition received more than 100,000 signatures in December to commute Manning's sentence.

Our last annotated assessment of Barack Obama's moves in dismantling, continuing and escalating (he has done all three) the oppressive apparatus of the Global War on Terrorism (GWOT) must inevitably be viewed in light of the current countdown to the death of democracy and the imminent despotism of Donald Trump. The fact that the transition is happening at all is a final contradiction of Obama's legacy. He is fully cooperating in it, even as his own intelligence agencies document how the election was tainted. Following official findings that Russia meddled in the elections, the White House has slapped new sanctions on Russia—deporting 35 Russian officials suspected of being intelligence operatives and shutting down two Russian facilities in New York and Maryland, both suspected of being used for intelligence-related purposes. The latest bizarre revelation—that Russian intelligence can blackmail Trump with information about his "perverted sexual acts" involving prostitutes at a Moscow hotel—broke just hours before Obama delivered his Farewell Address in Chicago. The speech was surreally optimistic in light of the actual situation in the country, and contained  only a few veiled swipes at Trump. The best of them was this: "If every economic issue is framed as a struggle between a hardworking white middle class and undeserving minorities, then workers of all shades will be left fighting for scraps while the wealthy withdraw further into their private enclaves."

Ahead of the 15th anniversary of the first detainees arriving at Guantánamo Bay Jan. 11, Amnesty International issued a "final plea" to President Obama to close the facility. The open letter (PDF) especially warned that the fate of the remaining detainees must not be left in the hands of the incoming Donald Trump. There are 55 people still held at Guantánamo, 45 of them detained without charge or trial. The 10 others have faced or are facing military commission proceedings that "fail to meet international fair trial standards." Six are currently facing the possibility of the death penalty after such unlawful trials. While the Obama administration has blamed the US Congress for blocking the closure of Guantánamo, Amnesty asserted that under international law domestic legislation or politics are not legitimate excuses for a country's failure to meet its treaty obligations.