Pilots accused of drugging political prisoners and throwing them from military aircraft during Argentina's Dirty War era face trial in Buenos Aires.

Nobody knew what happened to the so-called 'disappeared' until a woman, Miriam Lewi,n discovered that the military dropped hundreds of bodies off planes into the ocean.

She tracked down a plane in Florida that was used for these so-called death flights.

Some 68 people stand accused of human rights abuses.

The government says more than 11,000 people disappeared during the Dirty War. Rights groups say the number is closer to 30,000.

How many were thrown overboard in the death flights is uncertain.