Human welfare

Dr. Fatta Nahab, a neurologist who directs the Functional Imaging of Neurodegenerative Disorders Lab at the University of California San Diego Health's Movement Disorder Center, sits at his desk Monday, Sept 17, 2018, in San Diego. Nahab spent years going through regulatory hoops to get approval to import marijuana from Canada, to study whether cannabis can help treat essential tremor, a shaking condition affecting millions of people. (AP Photo/Julie Watson)

Law enforcement officers gather near the scene where the body of a woman was found near Interstate 35 north of Laredo, Texas on Saturday, Sept. 15, 2018. A U.S. Border Patrol agent suspected of killing four women was arrested early Saturday after a fifth woman who had been abducted managed to escape from him and notify authorities, law enforcement officials said, describing the agent as a "serial killer." (Danny Zaragoza/The Laredo Morning Times via AP)

FILE - In this March 21, 2006 file photo, pills move through a precision weighing machine at a pharmaceutical manufacturers trade show in New York. A federal watchdog agency says thousands of foster children may be getting powerful psychiatric drugs prescribed to them without required safeguards. (AP Photo/Mark Lennihan)

FILE - In this April 11, 2018, file photo, an unidentified 15-year-old high school student uses a vaping device near the school's campus in Cambridge, Mass. A school-based survey shows nearly 1 in 11 U.S. students have used marijuana in electronic cigarettes, heightening concern about the new popularity of vaping among teens. E-cigarettes typically contain nicotine, but results published Monday, Sept. 17, mean a little more than 2 million middle and high school students have used the devices to get high. (AP Photo/Steven Senne, File)

This Aug. 29, 2018 photo shows an arrangement of prescription Oxycodone pills in New York. Figures from a 2017 survey released on Friday, Sept. 14, 2018, show fewer people used heroin for the first time compared to the previous year, and fewer Americans misusing or addicted to prescription opioid painkillers. (AP Photo/Mark Lennihan)

FILE - In this May 5, 2016, file photo, Jeff Bezos, the founder and CEO of Amazon.com, speaks in the State Dining Room of the White House in Washington. Bezos said Thursday, Sept. 13, 2018, that he will start a $2 billion charitable fund to help homeless families and open new preschools in low-income neighborhoods. (AP Photo/Susan Walsh, File)

FILE - In this April 7, 2018, file photo, Dr. Sima Samar, chairperson of Afghanistan's Independent Human Rights Commission, speaks during an interview with The Associated Press in Kabul, Afghanistan. Afghan rights workers, including Sama, are warning that U.S. National Security Adviser John Bolton's blistering attack on the International Criminal Court investigating war crimes allegations will strengthen a climate of impunity in Afghanistan, prolong the war and embolden those carrying out acts of violence. In a speech Monday, Bolton said Washington would not cooperate with The Hague-based court and threatened it with sanctions, saying it put U.S. sovereignty and national security at risk. (AP Photo/Rahmat Gul, File)

FILE - In this Tuesday, Nov. 8, 2016 file photo, a local resident leaves a church after voting in the general election in Cumming, Iowa. Religion's role in politics and social policies is in the spotlight heading toward the midterm elections, yet relatively few Americans consider it crucial that a candidate be devoutly religious or share their religious beliefs, according to an AP-NORC national poll conducted Aug. 16-20, 2018. (AP Photo/Charlie Neibergall)

A human rights activist with T-shirts declaring support for Oleg Sentsov, a Ukrainian filmmaker on hunger strike in a Russian prison, at the annual meeting of the Organization for Security and Cooperation in Europe in Warsaw, Poland, Monday, Sept. 10, 2018.(AP Photo/Czarek Sokolowski)