Tatiana Horakova has an impressive résumé: As head of a Czech medical nonprofit that sends doctors to conflict zones, she negotiated the release of five Bulgarian nurses held by Muammar al-Qaddafi in Libya, traveled to Colombia with former French President Nicolas Sarkozy to secure a hostage’s freedom from FARC guerrillas, and turned down three nominations for the Nobel Peace Prize. Not bad for someone who might not even exist.