Custody. the use of restrictive housing in i.c.e. detention facilities is exkeyedingly rare, but at times necessary, what this report shows, guys, it really raises the question of whether i.c.e. is following its own policy, solitary confinement is supposed to be a last resort. as you heard from that whistleblower right there, she says it's oftentimes a first resort. >> is there any oversight, we are learning, is who is supposed to provide oversight for this. >> the dhs employee says she has sounded the alarm for years. she has sent memos up the chain. she actually alerted senator chuck grassle...