The work week is starting off with San Francisco drivers preparing for delays and detours. Major road closures begin tomorrow for the Asia-Pacific Economic Cooperation summit, known as APEC. Security is at the highest level with 20-thousand people expected to attend, including President Biden and 20 other world leaders. Some are already here and were bouncing from event to event last night as the mayor offered a “Welcome to the APEC” business advisory council at City Hall. She says she’s been waiting for this moment for so long.