SOPORE, India (Reuters) - T.K. Raju punches the air with his fist after a dog sniffs out a powerful bomb planted by rebels in Indian Kashmir. Raju, a dog handler with Indian security forces, gets a pat on the back from his boss and Rekha, the Labrador, grabs a biscuit after a three-hour search for bombs on a freezing morning in the Himalayan region. "It is worth the trouble when you detect bombs and mines planted by militants and save human lives," Raju, 25, told Reuters. But if there are moments of exhilaration, there are also times of extreme pain...