On a day when America's struggle with racial issues raged again, hundreds of Bay Area residents gathered in the East Bay to remember a mostly forgotten race-tinged incident that occurred 72 years earlier, taking the lives of 202 African Americans and leaving 50 more convicted of mutiny. The annual commemoration of the horrific Port Chicago explosion took place not at the Port Chicago Naval Magazine, which President Obama made a national memorial in 2009, but a couple of miles inland under a large, wind-buffeted white tent.