The North American Indigenous Games have officially opened. Prime Minister Justin Trudeau attended as thousands of Indigenous athletes from across the continent filled the downtown Halifax Forum Civic Centre. A Team Ontario athlete carries a “Every Child Matters” flag on a lacrosse stick during the opening ceremony of the North American Indigenous Games 2023 in Halifax, Sunday, July 16, 2023. THE CANADIAN PRESS/Darren Calabrese By Michael Tutton THE CANADIAN PRESS HALIFAX- The North American Indigenous Games officially kicked off Sunday evening with the prime minister in attendance, as thousands of Indigenous athletes from across the continent filled the Halifax Forum Civic Centre. Prime Minister Justin Trudeau, who was greeted by cheers and some boos, told the stadium filled with young athletes they will celebrate not only their athletic achievements,…