Now, the twin bombings at the Boston Marathon struck at a very special type of sporting event. Marathons have been called the most democratic of sports, with the fewest physical barriers between athlete and spectator.
NPR's Mike Pesca examines whether the attack could permanently damage that accessibility.
Yet another movie about Jackie Robinson arrived as baseball held its annual commemorative celebration of No. 42, but officials of the game are fretting over the fact that only 8 1/2 percent of current major leaguers are black.
Given that African-Americans only constitute about 13 percent of the U.S. population, and that rarely do we have any industry or school system or community population that correlates exactly to the whole country's racial or ethnic makeup, baseball's somewhat smaller black cohort hardly seems like an issue to agonize over.