"Despite the progress the United States has made, Black Americans are too often denied basic privileges that others take for granted. I am not talking about the privileges of wealth, education or job opportunities. I'm talking about fundamental human and civil rights and the dignity and respect that comes with them. I'm talking about something as mundane as going for a jog."

Mark Mason, chief financial officer at Citigroup, writing this past weekend on the company’s blog. The post titled, simply, “I can’t breathe,” has received hundreds of comments.