The Canadian Police is heading up the 900 million dollars security operation, the largest in Canada's history.

加拿大警方正在领导一项耗资 9 亿美元的安全行动，这是加拿大历史上规模最大的一次行动。

So when Facebook called me in 2018 and offered me this role heading its elections integrity operations for political advertising, I felt I had to say yes.

因此，当 Facebook 在 2018 年给我打电话并让我担任领导其政治广告选举诚信业务的职位时，我觉得我必须同意。