Current and former officials — apparently so fearful that an FBI informant’s identity and role would be outed by congressional Republicans — confirmed both to the New York Times and the Washington Post in an attempt to offer their own narratives first. Both outlets offered details that readily identify the informant — but do not name him, citing concerns for his safety and warnings from U.S. intelligence officials. The details, however, match a person described in the Daily Caller as Stefan Halper, a Cambridge professor and longtime Washington, D.C. fixture who worked for three Republican administrations and has links to...