 Wall Street Journal reporter Evan Gershkovich appeared in a Russian courtroom early today. His trial and espionage charges taking place behind closed doors. Gershkovich's employers and the U.S. government and he himself strongly deny the charges and say he was merely doing his job. This is ABC News. I'm Kareem Abdul-Jabbar. I learned about atrial fibrillation the hard way. My symptoms would come and go. Shortness of breath, fatigue. I kept going.