Five Best Ideas of the Day April 10
1. China is literally building islands from almost nothing to tighten control over the South China Sea. By Sui-Lee Wee and Ben Blanchard at Reuters, 2. With drones and a recycled fishing trawler, one group is rescuing migrants making the world's deadliest border crossing. By Brad Wieners in Bloomberg Business, 3. How can India can fix its trade imbalance? Convince Hindu temples to deposit their billion-dollar gold hoards in banks. By Meenakshi Sharma and Krishna N. Das in Voice of America, 4. Bangkok's insane malls consume as much power as entire Thai provinces. By Adam Pasick in Quartz, 5. Biometrics  fingerprints and retina scans  have changed spycraft, and now even the bad guys are using it. By Kate Brannen in Foreign Policy