It began as one of those gorgeous, late summer days with sunshine and clear skies. But the weather was an illusion on that Tuesday, 20 years ago. Something as dark as only a handful of days in our American history soon unfolded.

We hear from five local voices, as they recount their memories and personal reflections from that day.

Earlier this summer, we asked you to share with us your experiences from September 11th, 2001. Dozens of you responded. Thank you. Your stories moved really moved us. Today, we share with you two of those stories.

Plus, kids are back in Boston Public School classrooms today as COVID worries continue and five major mayoral candidates try to distinguish themselves on who's best for kids and schools.

Plus, we take listener calls on how to make sure kids make the most of in-person learning, even in their thorniest subjects.

We review the candidate positions in this unprecedented race with WBUR Senior Political Correspondent Anthony Brooks, and Meghan Irons, reporter at the Boston Globe who's been covering the race.

Plus, we discuss how trees can simultaneously help fight climate change and actually improve our individual health.

As we approach the 20th anniversary of 9/11, we talk with Massachusetts Congressman Jake Auchincloss about how he remembers that day, how it played into his decision to join the Marines, and how he's thinking about it now that the ensuing 20-year-war in Afghanistan has ended.

A growing body of science is now recognizing that trees are not only crucial for our climate, but also for our mental and physical health.

Plus, we answer listener COVID questions in another edition of Ask the Doctors.