China-U.S. relations take another hit. US President Donald Trump signed an executive order barring transactions with Chinese tech companies including TikTok starting in 45 days. Secretary of State Mike Pompeo urged U.S. app stores to remove what he calls "untrusted" Chinese-owned apps. What does the escalation in the China-U.S. tech tensions imply? And what danger will US's digital monopoly pose to the world?