Crackdown under way as part of an investigation into human smuggling . Federal authorities scheduled a news conference for Thursday afternoon to discuss what they called `` a massive , yearlong investigation targeting the infrastructure of several major Arizona-based human smuggling networks . '' Authorities made at least 40 arrests on Thursday , ICE officials said . Comment:
Crackdown under way as part of an investigation into human smuggling . Authorities made at least 40 arrests on Thursday , ICE officials said . Comment: