Ted Johnson CBS News is forming a race and culture unit, with Alvin Patrick named as executive producer.The network said that the unit will ensure that the news division’s “reporting reflects diverse perspectives,” and it will spearhead initiatives on race and culture and be a place for any staffer to pitch relevant stories.The news division’s president, Susan Zirinsky, said in a statement, “We must always be aware of how race and culture impacts our journalism – and, in terms of the future of