A proposed scheme in Japan offering cash rewards for tip-offs about illegal foreign workers has won support from residents frustrated by what they see as weak enforcement of immigration rules, but migrant advocates warn the policy could deepen distrust and push vulnerable people further into the shadows. The “reporting reward” proposal, announced by Ibaraki Governor Kazuhiko Oigawa earlier this month, would amount to a cash reward of “several tens of thousands of yen” for information leading to...