President Joe Biden has ‘fixed’ one of the most tragic flaws that led to the darkest day in American aviation, 9/11. This week, the president signed into law the FAA Reauthorization Act of 2024, which now requires a secondary cockpit barrier to be installed on all commercial aircraft. The US House 387-26 adopted the rule and placed it before the president. It will remain law until 2028, when the National Transportation Safety Board is reauthorized to keep it going.