( CNN ) When we asked our viewers to tweet their questions about the crash of Germanwings Flight 9525 , we received hundreds of responses . We put them to our experts and here are answers to six of the most interesting ones . 1. `` Does the rate of descent tell you anything ? If co-pilot was determined to crash , why would he set it so slow ? '' 2 . `` New cars can stop themselves before a crash . Why is n't there tech to prevent a plane from landing anywhere but the runway ? '' 3 . `` Why do n't we have live cameras on planes , so when we detect something wrong , we can help the innocent and take over and help ? '' 4 . `` Is there a possibility the plane was hacked , and that the co-pilot was framed ? '' 5 . `` [ The ] plane was presumably full of fuel , why was n't there a fiery explosion upon impact ? Does the wreckage show any burn marks ? '' 6 . `` What about under the influence of medication or other drugs ? How often do they go through drug screening ? ''
CNN received hundreds of questions about the Germanwings plane crash . The airline has been under fire for its safety record since it crashed in a field near Duesseldorf on March 24, killing all 150 people aboard.