A California professor detained with her teenage son says US immigration authorities are punishing her family for something her husband's mother did nearly 50 years ago, before her husband was born. Tahmasebi said she, her husband, Eissa Hashemi, and their high school-aged son are lawful permanent residents with valid green cards. She said it did not occur to her that he might have been detained by US Immigration and Customs Enforcement (ICE). The next day, Tahmasebi said Department of Homeland Security vehicles surrounded her car as she took her son to school. Tahmasebi argued that the government's position could leave the family detained for an indefinite period.