Morning Update: How helping invites happiness

Good morning. For Thanksgiving weekend, we set out to research the long history of mutual aid, and how neighbours helping neighbours can make the world better. More on that below, plus more ceasefire updates from the Middle East. But first:

• Israelis and Palestinians celebrate in the streets after Hamas signs a ceasefire deal with Israel
• Top Carney minister and officials remain in Washington to pursue trade talks
• An audit finds the federal Indigenous procurement program lacks robust fraud detection