Dave Johnson, previously of Campaign for America's Future/People's Action and Center for Media and Democracy primarily writes about American trade, economic and labor issues. Prior to his work in politics he had more than 20 years of technology industry experience. His earlier career included senior positions including CEO and VP of Sales and Marketing. Before that he held technical positions, including video game design at Atari. He was a pioneer in design and development of productivity and educational applications of personal computers. More recently he helped co-found a company developing desktop systems to validate carbon trading in the US.