Boston Marathon bombing suspect Dzhokhar Tsarnaev has been charged in a sealed complaint, and his initial court appearance was conducted today by a federal magistrate judge in his hospital room, a federal court official says. The announcement by Gary H. Wente, circuit executive for the US courts for the First Circuit , came after a White House spokesman said earlier today that Tsarnaev, who is in serious condition at Beth Israel Deaconess Medical Center, would be tried in the federal court system.