Here is an interesting article from GQ magazine of all places that provides an in-depth look at how
The female assassins had been identified on the CCTV footage with almost comic ease—the Vietnamese woman’s white jumper, adorned with LOL, proved easy to track through the grainy footage. Catching her was simple, too: Doan Thi Huong, 29, was arrested the day after the killing, when she returned to the airport. She had been born in a rural Vietnamese village, had her dreams of celebrity dashed when she lasted 20 seconds on Vietnam Idol, and ended up working as an escort in Hanoi, where she’d been recruited by an undercover North Korean agent.
At 2 A.M. the morning after the murder, Malaysian police marched through the dank hallways of the Flamingo Hotel in Kuala Lumpur, in which stained springless mattresses leaned against walls to air out during the day. In a third-floor room, the second alleged assassin, a 25-year-old from Indonesia named Siti Aisyah, had just finished servicing a Malaysian man and sent him on his way when the officers burst through the unlocked door.
From the CCTV footage, Doan’s and Siti’s guilt seemed clear until, under interrogation, they both separately explained that they thought they’d merely slathered Jong-nam with a harmless liquid for a hidden-camera TV show. (………)
While both women’s lives followed a remarkably similar lopsided arc of disappointment from remote hamlets to seedy nightclubs to prison cells where they now face death, it was Siti’s footprints that I tracked across Asia because, having lived for three years in Indonesia, I had met dozens of vulnerable migrant women who could have suffered her fate. I felt like there was bound to be more to the story than the Malaysian police had reported. And sure enough, the truth I ultimately discovered was far more complicated than I ever could have imagined.
Siti was recruited by the North Koreans at 3 A.M. on January 5, 2017, outside a notorious bar in Kuala Lumpur. On paper, she worked as a masseuse in the Flamingo Hotel’s spa, but when I visited in July, a worker immediately asked, “You want to sleep with a Thai or Indonesian girl?” Later, one of Siti’s friends laughed when I said I’d heard she’d given massages there, declaring, “She was totally sex!” [GQ Magazine]
You can read the rest of the elaborate scheme the North Koreans put together to recruit Aisyah to conduct the supposed comedy pranks. Here is a very insightful part of the article:
Nam explained, “Pyongyang wanted to horrify the rest of the world by releasing a chemical weapon at an airport.” By unleashing such weaponry in a place symbolically shared by the global community—an international airport—North Korea was warning everyone not to cross it. As Nam concluded, “Jong-un wants to reign a long time and negotiate as a superpower. The only way to do that is to keep the world in fear of his weapons. He has a grand design, and this is part of it.”
In the end, Pyongyang suffered no significant consequences from the assassination. The people on death row for the murder are two Southeast Asian women, whom Nam believes are not guilty.
This is something world government will have to consider, in response to a preemptive strike against North Korea they could retaliate by releasing VX nerve agents in international airports. If people thought the aftermath of 9-11 was bad for the airline industry could you imagine what would happen if multiple airports are targeted with VX nerve agents?