Malaria’s not the only surprise comeback of 2023. Gold heists are still a thing: Police in Canada are investigating one of the largest gold heists in the country’s history, after more than C$20m ($15m; £12m) of the precious metal and other valuable goods were stolen from Toronto’s airport [this past April]. […] In a brazen pilferage, a “high-value container” disappeared while it was being transported to a cargo holding facility near Canada’s busiest airport. Authorities say the thieves gained access to the public side of a warehouse near Toronto Pearson International Airport that was unmanned by airport security. The theft, which is still under investigation, was an isolated and “very rare” incident, police say. While a heist of that magnitude is indeed rare, a look at Canadian history shows it’s not the first. The Toronto Pearson International Airport has often been used as a hub for gold mined in the province of Ontario, and in September 1952 it was the scene of a mysterious heist. Back then, Pearson was known by another name: Malton Airport. It is where thieves managed to steal about C$215,000-worth of gold bars (valued at about C$2.5m today). The gold was stored in a steel mesh wire cage before it was loaded to a Montreal-bound plane. From there, it was destined to be shipped to the UK. But when the plane arrived in Montreal, there were only four boxes of gold bullion out of 10. According to articles from the Toronto Star at the time, the…