This quick TED talk entry is courtesy of TED.com. The subject of race can be very touchy.  As finance executive Mellody Hobson says, it’s a “conversational third rail.” But, she says, that’s exactly why we need to start talking about it. In this engaging, persuasive talk, Hobson makes the case that speaking openly about race — and particularly about diversity in hiring — makes for better businesses and a better society.