With the Russians demanding to see evidence that implicates them in cyber-attacks, President Barack Obama is vowing retaliation for hacking operations aimed at interfering with the U.S. election.
ABC News: Obama vows retaliation as evidence of Russian hacking mounts
US President Barack Obama (R) and Russian President Vladimir Putin (L) talk before the second working session at the G20 Summit in the Turkish Mediterranean resort of Antalya, on Nov. 16, 2015. (AFP)
