The Djs are culpable.
Their senior management even more so.
I've read the transcript of their 'apologies'. They repeat "no-one could have predicted this outcome" dozens of times, clearly having been coached by lawyers to say as much.
Well, actually, they could have predicted this. The prank was either
a. going to fail, and they would be hung up on...this is what they claim they expected.
or b. succeed in fooling the nurses, causing them to treat the call in good faith and subsequently humiliating themselves, breaching security protocols and breaking confidential medical information to the wrong people.
Fair to assume that they could have predicted it would wither a.fail or b. succeed, since they are the only two options.
Given that it did succeed and they started receiving the confidential information, having tricked the nurses, did they ...
-hang up quickly, thinking OMG what did we just do? Have we just tricked some medical professionals, caused an embarrassing security breach and found out personal medical information we shouldn't know? Quick - delete the tape?
or
-gloat and crow about this being the highlight of their careers, pass the tape on to their seniors, and not give a thought to how the PEOPLE they just tricked would feel, and what might happen to them and their jobs as a result?
I'd like to know this of the DJs: What DID you think the nurses and Kate would feel as a result of what you did? How do you expect a globally humiliated nurse to react when her professional error of judgement (which could feasibly have cost her a job) is broadcast around the world?
I can't imagine anything but devastation, myself.