Two important issues in the world are keeping people on tenterhooks. The first is the relations between North Korea and the United States. No one knows what may happen any time. There are fears of developments that could lead to a third World War. Such a war could mean real disaster for humanity.
The second thing is the Russia probe on the 2016 presidential election which is getting to a crucial stage. No one can predict what comes next. The issue could take a turn that really leaves people on tenterhooks.
These two issues smell of imminent disaster for humanity. Who says the world is not on tenterhooks?