In March 2019, it was revealed that Dickson had been secretly captured on video with James Ashby (One Nation's Media Advisor) courting the American National Rifle Association (NRA) seeking funds for Pauline Hanson's One Nation, with the promise to weaken Australia's gun laws if they gained the balance of power in the Australian parliament. Al Jazeera conducted a 3-year long operation to uncover this activity, by having a person called Rodger Muller pose as the head of a fake gun lobby group 'Gun Rights Australia', then having Muller record meetings he attended with Dickson and James Ashby, where strategies to seek support from the National Rifle Association and at least one of their large corporate benefactor were discussed. The footage from these meetings were used to produce an episode for Al Jazeera English, titled "How to Sell a Massacre" (part 1).