Why elite police units like SCORPION have been controversial for decades

Aggressive tactics and even deaths have been blamed on specialist police teams long before members of the Memphis SCORPION unit beat Tyre Nichols. CNN’s Shimon Prokupecz reports.Aggressive tactics and even deaths have been blamed on specialist police teams long before members of the Memphis SCORPION unit beat Tyre Nichols. CNN’s Shimon Prokupecz reports.