FOX News in the Classroom: March 7, 2023

The video covers several topics: President Biden's speech on voting rights and civil rights history in Selma, Alabama; the United Nations' agreement on a treaty to protect ocean biodiversity in international waters; the suspected poisoning of Iranian schoolgirls and the subsequent investigation; and the start of the 2023 Iditarod dog sled race in Alaska.

What is the significance of the Iditarod dog sled race mentioned in the text?

How does the 2023 Iditarod field compare to previous years?