BLOOMSBURG Police say after they stopped Philadelphia man for erratic driving on Swisher Drive, he admitted he’d smoked pot about an hour before, according to court papers. Nadir Mykel Luker, 21, was travelling north at about 3:30 a.m. on Sept. 3, when he was pulled over for an expired registration, authorities report. Troopers approached Luker in the driver’s seat. Luker