Russian hypersonic missile scientist to face trial for alleged treason.

The trial of the first of three Russian hypersonic missile scientists arrested on suspicion of treason will begin next week. The case is marked as "top secret" and will be closed to the media and public. The accused are specialists in hypersonics, a field of key importance to the development of Russia's next generation of missiles, capable of flying at 10 times the speed of sound. The accusations against the three men are classified, but the news portal of the science city where they are based said one of them was suspected of handing secrets to China.