The arrest of three people at a seafood distribution warehouse in Newark has led to a heightened sense of alarm in the region.

President Donald Trump has pledged to carry out the largest deportation effort in US history, vowing to ultimately deport all of the foreigners living in the country without permission. They are thought to number at least 11 million,

Immigrants and advocacy groups nationwide are scrambling to prepare for the waves of raids President Trump has promised under his plan to deport millions of people unauthorized to stay in the U.S. Why it matters: Confusion and persistent rumors about how the raids will be carried out — and what will happen to those detained by immigration agents — are leading some anxious immigrants to refuse to go to work or send their children to schools,