The only man to break the sound barrier – ace skydiver and base jumper, Felix Baumgartner. On October 14, 2012, in New Mexico, USA, Baumgartner jumped off a balloon poised 39 kms above the earth's surface. This was also a record for the highest flight by a manned balloon. Baumgartner was in free fall for over 4 minutes, when he crossed the speed of sound. NDTV caught up with Baumgartner for an exclusive chat - on the training, the experience and what lies ahead for him.