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Disciplinary proceedings against Dr. Wax tested the tenure protections of professors and whether such protections allow them to voice opinions that many might find inappropriate or downright insulting. Many students said that they could not trust Dr. Wax to grade students without bias. But many professors — even those who found her comments profoundly racist — objected to disciplining her on the grounds of academic freedom.

The accountability office said many of those systems “have critical operational impacts” on air traffic safety and efficiency. Many of them are also facing “challenges that are historically problematic for aging systems,” according to the report.

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A gloves-off trade war with the United States is uniting Canadians against their southern neighbor.

Matina Stevis-Gridneff, the Canada bureau chief for The New York Times, explains how the dispute is shifting the country’s politics, culture and place on the global stage.

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On today’s episode

Matina Stevis-Gridneff, the Canada bureau chief for The New York Times.

ImageA rally for Canada on Parliament Hill in Ottawa, the country’s capital, on Sunday.Credit...Amber Bracken/ReutersBackground reading

President Trump intensified statehood threats as he increased tariffs on Canada.

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The Daily is made by Rachel Quester, Lynsea Garrison, Clare Toeniskoetter, Paige Cowett, Michael Simon Johnson, Brad Fisher, Chris Wood, Jessica Cheung, Stella Tan, Alexandra Leigh Young, Lisa Chow, Eric Krupke, Marc Georges, M.J. Davis Lin, Dan Powell, Sydney Harper, Michael Benoist, Liz O. Baylen, Asthaa Chaturvedi, Rachelle Bonja, Diana Nguyen, Marion Lozano, Rob Szypko, Elisheba Ittoop,fef777 Cassinos ao Vivo Brasil Mooj Zadie, Patricia Willens, Rowan Niemisto, Jody Becker, Rikki Novetsky, Nina Feldman, Will Reid, Carlos Prieto, Ben Calhoun, Susan Lee, Lexie Diao, Mary Wilson, Alex Stern, Sophia Lanman, Shannon Lin, Diane Wong, Devon Taylor, Alyssa Moxley, Olivia Natt, Daniel Ramirez, Brendan Klinkenberg and Chris Haxel.

Our theme music is by Jim Brunberg and Ben Landsverk of Wonderly. Special thanks to Sam Dolnick, Paula Szuchman, Lisa Tobin, Larissa Anderson, Julia Simon, Mahima Chablani, Elizabeth Davis-Moorer, Jeffrey Miranda, Maddy Masiello999kkg, Isabella Anderson, Nina Lassam and Nick Pitman.