Charisma is a crucial component of a politician's appeal to voters. But there's more than one way to inspire confidence.
Marketing companies are gathering information about consumers’ behavior — from tracking what you watch on T.V. to where you spend time online — and using it to help businesses calculate how to target their products.
Media analyst John Carroll joins Here & Now’s Sacha Pfeiffer to discuss how this relatively new way of mining and manipulating data is transforming the marketing and retail industry.