That also means every alert in Canada has a siren.

Many of the more severe alerts have been false positives:

https://www.nytimes.com/2018/01/13/us/hawaii-missile.html (https://www.nytimes.com/2018/01/13/us/hawaii-missile.html)

https://www.preventionweb.net/news/canada-fallout-false-nuclear-alarm (https://www.preventionweb.net/news/canada-fallout-false-nuclear-alarm)

Most AMBER alerts are custody battles or false alerts.

On GrapheneOS, it's up to you if you want this feature enabled.

https://grapheneos.social/@GrapheneOS/111175269574986574