Whose reality? Propaganda in the age of social media

Propaganda has always been a part of conflict. But in the wake of Maj. Gen. Qassem Soleimani's death, Americans got a glimpse of how easily misinformation can spread in this social media age. What to do?

Truth, it is often said, is the first casualty of war, and in the wake of the assassination of Maj. Gen. Qassem Soleimani of Iran on Jan. 3, misinformation ran rampant.

In the days following the U.S.-led drone strike, the White House’s rationales for the attack shifted wildly. Initially, the Trump administration claimed that...