A nation must think before it acts.
Targeted people might also have directed that same disinformation — whether intentionally or not — to people linked to them on social networks, such as their friends on Facebook.
“This means that any American who knowingly or unknowingly clicked on a Russian news site may have been targeted through Facebook’s advertising systems to become an agent of influence — a potentially sympathetic American who could spread Russian propaganda with other Americans,” said Clinton Watts, a fellow at the Foreign Policy Research Institute. “Every successful click gives them more data that they can use to retarget. It feeds on itself and it speeds up the influence dramatically.”