I remember the day when I was conducting an experiment on strength check on concrete beam. My professor came to us and asked us to use lense, not to use bare eye. There are micro cracks thats the important things you have to see and the bare eyes only let you know the wide cracks and which is too late to be of any useful ness. That experiment might be on Reinforced concrete beam, but the idea can carried over to real world problem. Tension cracks can not be easily solved ............... The only solution is to unload the beam, but Maoists have to be unloaded and time is waiting for them. GP