By Celina Tebor, Nicki Brown and Eric Levenson | CNN The Cornell University student accused of posting online threats to kill members of the university’s Jewish community appeared in federal court Wednesday and was ordered to remain behind bars for the time being. Patrick Dai, a 21-year-old junior at the Ivy League school, was arrested Tuesday and charged federally with “posting threats to kill or injure another using interstate communications,” the US Attorney’s Office for New York’s Northern District announced. The charge is punishable by up to five years in prison. Dai appeared in a Syracuse courtroom wearing an orange...