Group's report comes as the world's political and financial elite prepare for an annual gathering in Davos, Switzerland.
Ahead of his second inauguration US President-elect Donald Trump spoke of achieving peace in the Middle East.
Fan Weiqu had rammed his car into a crowd, killing 35, while Xu Jiajin, 21, killed eight people in a stabbing attack.
There were scenes of celebration in the occupied West Bank as Israel freed 90 Palestinian prisoners.