This Handout photo made available by the Auschwitz Museum on June 7, 2016 shows a cup reinforced with rusty wire, one of some 16000 objects found in 1967 near the crematorium number 3 on the site of ex-nazi concentration camp of Auschwitz Birkenau. These objects were the last belongings of prisoners, many of them Jews, going to their death in gas chambers. Found in 1967, they were rediscovered recently in a depot of Academy of Science. / AFP PHOTO / Museum Auschwitz / Pawel Sawicki / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / Museum Auschwitz / Pawel Sawicki"- NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS PAWEL SAWICKI/AFP/Getty Images

(FILES) This handout file image taken on November 26, 2015 and obtained from the European Space Agency on November 29, 2015 shows an artists impression of the LISA Pathfinder, ESAs mission to test technology for future gravitational-wave observatories in space. The European Space Agency's LISA Pathfinder experiment was launched last December to set up an ambitious mission to observe gravitational waves from space. Europe will tackle the construction of its future space observatory, eLISA, and search for gravitional waves in the depths of the universe. / AFP PHOTO / ESA / HO / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / ESA" - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS HO/AFP/Getty Images

Computer screens bearing a French and a Romanian national flags are pictured in a room during the inauguration of the international police cooperation centre for the Euro 2016 in Lognes, on June 7, 2016. France has mobilised a huge security detail of 90,000 police and security guards to protect the 10 venues hosting football matches around the country. / AFP PHOTO / BERTRAND GUAYBERTRAND GUAY/AFP/Getty Images

A picture taken on June 7, 2016 shows computer screens set up in a room during the inauguration of the international police cooperation centre for the Euro 2016 in Lognes. France has mobilised a huge security detail of 90,000 police and security guards to protect the 10 venues hosting football matches around the country. / AFP PHOTO / BERTRAND GUAYBERTRAND GUAY/AFP/Getty Images

People sit in front of computer screens set up in a room during the inauguration of the international police cooperation centre for the Euro 2016 in Lognes, on June 7, 2016. France has mobilised a huge security detail of 90,000 police and security guards to protect the 10 venues hosting football matches around the country. / AFP PHOTO / BERTRAND GUAYBERTRAND GUAY/AFP/Getty Images

People gather in a room during the inauguration of the international police cooperation centre for the Euro 2016 as two computers screen bearing a French national French and the logo of the French national police are seen, in Lognes, on June 7, 2016. France has mobilised a huge security detail of 90,000 police and security guards to protect the 10 venues hosting football matches around the country. / AFP PHOTO / BERTRAND GUAYBERTRAND GUAY/AFP/Getty Images

Spanish police officers sit in front of a computer screen bearing a Spanish national flag during the inauguration of the international police cooperation centre for the Euro 2016 in Lognes, on June 7, 2016. France has mobilised a huge security detail of 90,000 police and security guards to protect the 10 venues hosting football matches around the country. / AFP PHOTO / BERTRAND GUAYBERTRAND GUAY/AFP/Getty Images

A police officer sits in front of a computer screen bearing a French national flag during the inauguration of the international police cooperation centre for the Euro 2016 in Lognes, on June 7, 2016. France has mobilised a huge security detail of 90,000 police and security guards to protect the 10 venues hosting football matches around the country. / AFP PHOTO / BERTRAND GUAYBERTRAND GUAY/AFP/Getty Images