America’s adversaries have long used fake social media accounts, online bots and disinformation to depict the U.S. as a dangerous country beset with extremism and gun violence. Kirk’s killing has provided another opportunity for those overseas eager to shape public understanding while inflaming political polarization.

South Korean Foreign Minister Cho Hyun said on Wednesday he will be discussing Chinese President Xi Jinping's attendance at the summit of the Asia-Pacific Economic Cooperation (APEC) forum hosted by Korea in late October during his visit to Beijing.