Graduate students at Washington University contemplating a union drive say they believe their university is trying to intimidate them — with a "FAQ" issued by the university's provost that suggested international students could be deported if they found themselves on strike.If Wash U grad students formed a union and later engaged in a strike, students on F-1 visas could be legally barred from working as teaching assistants or researchers, the university claimed in the FAQ, which was sent to graduate students on August 31. It continued, "Under such circumstances, F-1 visa students could be subject to deportation whether they continued to 'work' or not."…