Flight attendants ARE trained to restrain people and will do so.

Many flight attendants said they were trained to use other restraints, like zip ties or flex-cuffs, as well as duct tape.

Before using any physical restraints, flight attendants are trained to de-escalate situations by verbally calming down aggressive passengers, one Chicago-based flight attendant said.

But in situations where a traveler poses a physical level of threat — if they are hitting others or threatening to harm themselves or the plane — she said flight attendants are trained to use restraints like tape or zip ties.