 Second, he concluded that Doherty had waived his claims to asylum and withholding of deportation when he abandoned those claims during the original deportation proceedings.Third, he concluded that Doherty was ineligible for withholding of deportation and for asylum because he had committed "serious nonpolitical crimes" in Northern Ireland.Motions to reopen are disfavored, particularly in deportation proceedings, because they can upset the finality of determinations made and simply work to the advantage of deportable aliens who wish nevertheless to remain in the United States.