TikTok and parent company ByteDance argue that potential ban would violate right to free expression for US users.
Billionaire Elon Musk has decried ban on X in Brazil, where the social media company failed to comply with court orders.
‘Unscrupulous’ companies, ‘dishonesty and greed’ and regulatory failure are at fault.
Panel expected to call on several key figures in bid to prevent repeat of deadly crash north of Sao Paulo.
