http://www.newsweek.com/elon-musk-breaks-down-during-interview-admits-needing-ambien-sleep-1077618

Tesla boss Elon Musk broke down in tears during an interview this week, detailing the professional and personal pressures caused by running the company.

At times defiant, the billionaire technologist maintained there was no-one else who could run the business better than him. Musk also claimed he did not regret sending a controversial tweet about taking Tesla private, which led to an alleged Securities and Exchange Commission probe.