The California state lawmaker who introduced a bill that would make the state the first in the nation to outlaw caste-based discrimination is receiving Islamophobic threats from the U.S. and abroad. State sen. Aisha Wahab says her office was flooded with dozens of hateful calls, hundreds of emails, and individuals yelling at staff in her district office after she introduced the legislation last week. Caste is a system of social hierarchy that has been especially pervasive in South Asia.