US President Donald Trump on Wednesday made a vague statement that he had been told “on good authority” that plans for executions in Iran have stopped, even as Tehran has indicated fast trials and executions ahead in its crackdown on protesters. The US president’s claims, which were made with few details, come after he told protesting Iranians in recent days that “help is on the way” and that his administration would “act accordingly” to respond to the Iranian government. But Trump has not...