The German group Bayer is appearing before a French court, sued by a family whose teenage son suffers from severe malformations attributed to his in utero exposure to glyphosate, the flagship product of the chemical giant. "I represent all those victims who are unable to seek justice," 17-year-old Theo tells AFP in a faint voice. The teenager has no vocal cords and speaks by vibrating his oesophagus. IMAGES AND SOUNDBITES