No further action will be taken against Sarah Helm, the wife of the prime minister’s national security adviser, after she was accused of supporting the banned protest group Palestine Action.Helm, a journalist and author who is married to Jonathan Powell, posted on X on Thursday: “God help us authors who support Palestine and Palestine Action.”The Metropolitan police said on Friday the post was “in the process of being assessed to determine whether any further police investigation may be required”.In an update on Saturday, a force spokesperson said: “On Thursday 15 October, we were made aware of a post on X...