MIAMI -- A plane passenger slapped a federal air marshal after refusing to sit down and ignoring instructions to end her cellular phone call, which she said would have been "rude," prosecutors said Tuesday. Lilia Belkova has been jailed since being charged with assaulting a federal officer and interfering with a flight crew last Wednesday as a US Airways flight prepared to take off from Miami to Philadelphia. A bail hearing was set for Thursday. It was unclear late Tuesday if Belkova, 38, had yet been assigned an attorney. According to prosecutors, Belkova refused flight attendants' instructions to turn off...