Norway’s $1.7 trillion wealth fund may have to divest shares of companies that violate the fund watchdog’s new, tougher interpretation of ethics standards for businesses that aid Israel’s operations in the occupied Palestinian territories, according to a report by news agency Reuters. The Council on Ethics for the world’s largest sovereign wealth fund sent an Aug. 30 letter to the finance ministry, seen by Reuters, that summarises the recently expanded definition of unethical corporate behavior. The change has not previously been reported. The letter did not specify how many nor name companies…