Weapons of mass destruction

This is an image of the daughter of former Russian Spy Sergei Skripal, Yulia Skripal taken from Yulia Skipal's Facebook account on Tuesday March 6, 2018. Britain's Foreign Office says it has asked the Organization for the Prohibition of Chemical Weapons to publish a summary of its findings at midday on Thursday April 12, 2018, on the nerve agent used to poison a former spy and his daughter in southwestern England.(Yulia Skripal/Facebook via AP)

This is an image of the daughter of former Russian Spy Sergei Skripal, Yulia Skripal taken from Yulia Skipal's Facebook account on Tuesday March 6, 2018. Britain's Foreign Office says it has asked the Organization for the Prohibition of Chemical Weapons to publish a summary of its findings at midday on Thursday April 12, 2018, on the nerve agent used to poison a former spy and his daughter in southwestern England.(Yulia Skripal/Facebook via AP)

In this photo released by the Syrian official news agency SANA, soldiers and residents salute civilians after they were released by the Army of Islam group that had held them since 2013, in Damascus, Syria, early Monday, April 9, 2018. Syrian state media is reporting that dozens of civilians who had been held for years by a rebel group near the capital Damascus have been freed. (SANA via AP)

In this photo released by the Syrian official news agency SANA, soldiers and residents salute civilians after they were released by the Army of Islam group that had held them since 2013, in Damascus, Syria, early Monday, April 9, 2018. Syrian state media is reporting that dozens of civilians who had been held for years by a rebel group near the capital Damascus have been freed. (SANA via AP)

Russian Ambassador to the United Nations Vasily Nebenzya talks with Syrian Ambassador to the United Nations Bashar Ja'afari, during a Security Council meeting, Tuesday, April 10, 2018, at United Nations headquarters. (AP Photo/Julie Jacobson)

President Donald Trump waits at the main entrance to the West Wing for the arrival of the Emir of Qatar Sheikh Tamim bin Hamad al-Thani, at the White House in Washington, Tuesday, April 10, 2018. (AP Photo/Manuel Balce Ceneta)

Israeli Prime Minister Benjamin Netanyahu speaks during the Holocaust Remembrance Day ceremony at the Yad Vashem Holocaust memorial in Jerusalem, Wednesday, April 11, 2018. Israel is commemorating its Holocaust Remembrance Day in memory of the 6 million Jews systematically killed by Nazi Germany and its collaborators during World War II. (AP Photo/Tsafrir Abayov)

Russian Ambassador to the United Nations Vasily Nebenzya talks with Syrian Ambassador to the United Nations Bashar Ja'afari, during a Security Council meeting, Tuesday, April 10, 2018, at United Nations headquarters. (AP Photo/Julie Jacobson)

Russian Ambassador to the United Nations Vasily Nebenzya talks with Syrian Ambassador to the United Nations Bashar Ja'afari, during a Security Council meeting, Tuesday, April 10, 2018, at United Nations headquarters. (AP Photo/Julie Jacobson)

This photo released by the Syrian official news agency SANA, shows Syrian President Bashar Assad, second right, greeting a delegation of Muslim clerics from around the world, who took part in a two-day conference called, "Unity of the Muslim World," in Damascus, Syria, Wednesday, April 11, 2018. (SANA via AP)