On The Line: A history of America wanting to annex people

On The Line: A history of America wanting to annex people

June 16, 2026 · 48 min

About this episode

This episode discusses America's historical attempts to annex territories and features an interview with historian Mark Kawar.

In today’s On The Line , host Jen Gerson speaks with Mark Kawar, an amateur historian and journalist whose book America But Bigger explores a surprisingly persistent feature of American history: attempts to expand the United States beyond its current borders. This episode of On The Line is brought to you by BioCanRx, a federally-funded Canadian not-for-profit research network helping Canadian researchers bring treatments from labs to patients in clinical trials –– all in Canada. Cancer can hide from your immune system. So how can we target it? Every day, your immune system finds and destroys different types of threats –– both external invaders like viruses, and internal dangers like pre-cancerous cells in your own body. But no system is perfect — sometimes something evades detection. Researchers are working to identify flags found on cancer cells, called antigens. By training your immune system to recognize these antigens as signals for destruction, some forms of immunotherapy equip your immune system to respond to cancer’s asymmetrical threat. In addition to funding clinical trials, BioCanRx supports research teams who identify cancer antigens, and find new ways to target them…

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