The men not only raped the 16-year-old girl for three hours, they took videos of it. The horrifying story of the sexual abuse of a low-caste girl in an Indian village has brought new attention to the problem of rape in the country, where assaults on women in the rigidified society tend to be swept under the rug. Rapes have increased 25 percent over the past six years, fueled by a surplus of young men, unemployment, drugs, and alcohol. Gang rapes, once uncommon, now regularly grab headlines. But some Indians are saying they’ve had enough.