OAKLAND, Calif. -- A lot can change in 10 years. Think back to the spring of 2010. The iPhone did not let us take selfies, Netflix still offered DVD rentals by mail and a one-bedroom apartment was ...

How do you count to 1.45bn? Start with 3.5m. That is the number of people who will knock on doors, compile spreadsheets and crunch data to conduct a new census in India, the world’s most populous ...