Salam,
Since it was invading Irans air space they should not give it back. Also I bet Iran did bring it down US just don't want to admit it.
http://www.bbc.co.uk/news/world-middle-east-16150384
President Barack Obama has said the US government has requested that Tehran return the surveillance drone captured by Iran's military earlier this month.
Mr Obama said he would not comment on classified intelligence matters, but confirmed: "We have asked for it back. We'll see how the Iranians respond."
Iranian TV broadcast pictures of the intact RQ-170 Sentinel last week.
Tehran said the aircraft was brought down using electronic warfare; Washington insisted it malfunctioned.
Earlier on Monday, Iranian state TV reported that military experts were in the final stages of recovering data from the drone.
Since it was invading Irans air space they should not give it back. Also I bet Iran did bring it down US just don't want to admit it.
http://www.bbc.co.uk/news/world-middle-east-16150384