Over the last seven years,at the scene of earthquakes and tsunamis across the world,one regular presence has been a team of rescuers in orange coveralls with "CHINA" printed on the back.The rescuers are a group of intemational humanitarian relief activists,known as the "orange fiames" from China.They are with the 2nd international heavy rescue team in Asia,and the 12th group in the world to have secured official approval fiom the Uruted Nations-the China International Search and Rescue Team (CISAR).