Aidan Killian consistently writes and performs the most committed, knottiest, issue-comedy shows on the Fringe; he’s done the bankers, he’s done Buddhism and now it’s whistleblowers – namely Julian Assange, Edward Snowden and Bradley/Chelsea Manning.

His mixture of charm, humour and blazing indignation is transfixing. If he wasn’t a comedian he could probably lead a cult, anything he liked, he’d have followers. It’s a great show, mixing some rather trad 'dad comedy', to get the party started, with ferocious lessons in politics, law and justice.

If that doesn’t sound like a barrel of laughs, then I’ve done him wrong, he’s put this together with the right mixture of light and heat, some cheeky laughs and sensitive, caring knob jokes (yes, it is just possible) all with passionate, driven intelligence.

He’s a bit like an Irish Mark Thomas, but without the cosiness, he gives you a sense that subversion runs in his veins. His manifesto for a geriatric jihad and the description of his how he would spend his final hours is hysterical. His writing has leapt on in the last year, this is a tighter show than ever before, well researched and compiled and with devastating facts about the treatment of the Assange, Snowden and Manning and a shock near-ending, but liberally laced with loud, rude, silly, sweet and funny routines.

You’ll be entertained, enlightened and enraged by turns, and as ever I can’t wait to see what he turns his attention to next.