A junior at Boston University and president of its College Republicans chapter is facing backlash after he said he was behind a series of calls to immigration authorities that led to the detention of nine workers at a car wash in Allston. Zac Segal wrote on X that he had been “calling ICE for months on end” about the car wash in his neighborhood, and claimed that “this week they finally responded to my request to detain these criminals.” Tricia McLaughlin, a spokesperson for the Department of