document.write("«&nbsp;<a href='/news/view?id=69562'>Graphs with conflict-free connection number two. (arXiv:1707.01634v1 [math.CO])</a>");document.write(" | ");document.write("<a href='/news/view?id=69564'>Hackers Are Targeting Nuclear Facilities, Homeland Security Dept. And F.B.I. Say</a>&nbsp;»");