The media is quick to publish reports about the "evils" of social media. Twitter is a favourite whipping target.
Here is a little-told story about 26 young girls (aged 10-14) being saved from the clutches of human traffickers in India because of a simple tweet. Adarsh Shrivastava, a good samaritan, travelling on an Indian train noticed a group of young girls that seemed to be in distress. He twitted the train operator which was the start of their rescue.
A representative from the Ministry of Railways forwarded a support request to the railway police.
Shortly after being notified, the railway police intervened and rescued the girls. Two men were arrested.