Israeli soldiers stand at the scene of an attack near the settlement of Givat Assaf in the West Bank, Thursday, Dec. 13, 2018. A Palestinian gunman opened fire at a bus stop outside a West Bank settlement on Thursday, shooting at soldiers and civilians and killing at least two Israelis before fleeing, the military and Israel's rescue service said. (AP Photo/Nasser Shiyoukhi)

Huawei chief financial officer Meng Wanzhou arrives at a parole office with a security guard in Vancouver, British Columbia, Wednesday, Dec. 12, 2018. (Darryl Dyck/The Canadian Press via AP)

Israeli soldiers and emergency services stand at the scene of an attack near the settlement of Givat Assaf in the West Bank, Thursday, Dec. 13, 2018. A Palestinian gunman opened fire at a bus stop outside a West Bank settlement on Thursday, shooting at soldiers and civilians and killing at least two Israelis before fleeing, the military and Israel's rescue service said. (AP Photo/Mahmoud Illean)

FILE - In this Monday, Nov. 12, 2018 file photo, Palestinians inspect a vehicle that was destroyed in an Israeli raid that killed seven Hamas Palestinian militants, including a local Hamas commander, late Sunday, east of Khan Younis, southern Gaza Strip. An Israeli army officer was also killed in the incurison into Gaza. The fighting came just days after Israel and Hamas reached indirect deals, backed by Qatar and Egypt, to allow cash and fuel into Gaza. A month after a heavy round of Israel-Hamas fighting, the undercover Israeli operation that sparked the battle remains clouded in mystery(AP Photo/Adel Hana, File)

FILE - In this Thursday, Dec. 6, 2018, file photo, a man lights a cigarette outside a Huawei retail shop in Beijing. Taiwan is reinforcing its five-year-old ban on network equipment produced by Chinese companies Huawei and ZTE amid security concerns. (AP Photo/Ng Han Guan, File)

In this photo taken Friday, Dec. 7, 2018, women and girls walk back after getting food in Bentiu, a 38 kilometers (24 miles) journey using a path through the bush for fear of being attacked on the main road, near Nhialdu in South Sudan. Rape has been used widely as a weapon in South Sudan and even after a peace deal was signed in September, humanitarians have warned of higher rates of sexual assault as growing numbers of desperate people try to reach aid. (AP Photo/Sam Mednick)

Palestinian women hurl stones at Israeli troops during a protest at the Gaza Strip's border with Israel on May 4, 2018. (AP Photo/ Khalil Hamra)

FILE - In this April 17, 2017, file photo, Pakistan's army spokesman Maj. Gen. Asif Ghafoor addresses a news conference in Rawalpindi, Pakistan. Ghafoor told a briefing of foreign journalists Tuesday, Dec. 4, 2018, that Pakistan's influence over the Taliban is overstated, yet he said Pakistan has repeatedly told the insurgent group to join the peace process. (AP Photo/Anjum Naveed, File)

Argentina's President Mauricio Macri and first lady Juliana Awada welcome China's President Xi Jinping at presidential residence in Olivos, a northern suburb of Buenos Aires, Argentina, Sunday, Dec. 2, 2018. (AP Photo/Martin Mejia)