CompaniesTesla CEO Elon Musk buys Twitter: 4 things to know
Billionaire pledges to protect free speech but China ties are in the spotlight
Elon Musk could face problems running Twitter in the growing number of countries where there are restrictions or controls on social media. (Nikkei montage/Reuters/AP)
WATARU SUZUKI, Nikkei staff writer
TOKYO -- Twitter on Monday accepted a $44 billion acquisition bid by Elon Musk, the billionaire CEO of Tesla and SpaceX, paving the way for the world's richest man to take control of a global social media platform. Here are four things to know about the deal.