Twitter is taking impersonation seriously and will be launching Verified Accounts. As it stands now, it violates their terms of service for someone to claim to be someone they are not and gives the company the power to revoke the account. First, Twitter will be testing public officials, agencies, athletes and well known individuals. They hope to extend this as time goes on. When an account is verified, there will be a logo that people can clearly see the person or company is who they say they are.