Cairo's newest attraction is the Grand Egyptian Museum, a modern testament to one of the world's oldest civilizations. Spanning more than 5 million square feet, the $1 billion museum arrives after decades of delays caused by political upheaval, financial setbacks, a global pandemic and regional wars. Jane Pauley reports on the opening of the museum, whose collection includes thousands of artifacts from the reign of King Tutankhamun — items that haven’t been displayed together since his tomb was