The newer, more relaxed rules are part of a move toward a more risk-based screening procedure for passengers, rather than the one-size-fits-all system currently in place.
Renal denervation therapy is a minimally invasive, catheter-based procedure that modulates the output of nerves that lie within the renal artery wall and lead into and out of the kidneys.
Rather than browbeating them into a strict, regimented passenger-servicing procedure, we give them the flexibility to adjust to customers based on their varying demands, which are not always part of our playbook.