2014英语四级听力练习慢速4.21(2)_大学英语听力

2014英语四级听力练习慢速4.21(2)

　　From Learning English, this is the Technology Report.

　　Researchers are using new methods to aid investigations into deadly strikes by pilotless-planes called drones. The United Nations wants independent investigations into drone attacks.

　　They estimate that there were 3 times as many civilian death from drones last year as the year before. But it is difficult to know the effect on civilians, because the attacks are often in likely populated areas.

　　A recent investigation found that drone strikes in Pakistan killed 2,000 people during the 10-year period. The information was given to the United Nations.

　　Scientists from Goldsmiths, University of London and SITU Research in New York are trying to learn more. They have been gathering evdence to create 3-D moving images of drone attacks. They call this process Forensic Architecture.

　　3D model of a drone strike in Miranshah, Pakistan, 30 March . Video still.

　　Susan Schuppli is the lead researcher from Goldsmiths. She says Forensic Architecture answers an important question in the debate over drones.

　　What this drone warfare actually produce as a kind of lethality on the ground, said Schuppli.

　　Ms Schuppli and her team use satellite images of places before and after an attack. They also use reports from witnesses, local maps and other information. The goal is to help investigations into drone strikes that happened in Pakistan, Afghanistan, Yemen, Gaza and Somalia. The scientist identified 37 drone strikes in those areas.