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Michael J. Armstrong

Michael J. Armstrong

The Conversation

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Iran’s missile mayhem show the limits of Middle East defences

Israeli and U.S. strikes on Iran have triggered a widening regional conflict, drawing in Tehran’s allies and several Arab states while testing...

03.03.2026 9

The Conversation

Michael J. Armstrong

After Canada legalized cannabis, police caught more drunk drivers

Police reported more drug and alcohol impairment after 2018. The growth seemed more due to enforcement changes and pandemic restrictions than to...

19.12.2025 10

The Conversation

Michael J. Armstrong

Alcohol sales changed subtly after Canada legalized cannabis

Total alcohol sales didn’t change much in the first 17 months after Canada legalized recreational cannabis, but small changes appeared at the local...

08.07.2025 20

The Conversation

Michael J. Armstrong

Cannabis retail expansion in Canada came with only a small uptick in the number of consumers

Increased usage among women and older adults during 2019-2023 seemed related more to falling prices than to the expanding number of stores.

01.04.2025 10

The Conversation

Michael J. Armstrong