China hits back at US with tariffs; OpenAI partners with Kakao | East Asia Tonight (Feb 4)

Also on East Asia Tonight, South Korea to overhaul aviation safety system after two major incidents; OpenAI inks deal with South Korea's Kakao amid intensifying competition; US Secretary of State Marco Rubio calls Panama's decision to leave China's Belt and Road Initiative a "great step forward"; Nintendo slashes sales forecast; and Japan releases rice stockpile to ease prices.

00:00 Headlines
05:03 China expert calls Beijing's retaliatory moves on US "reserved"
19:02 OpenAI clinches Kakao deal a day after announcing SoftBank partnership
20:24 Nintendo's revenue plummets as demand for Switch console falls
33:39 Pakistani President Asif Ali Zardari on five-day visit to China
41:54 Japan releases rice stockpile to ease rising food prices
43:18 Malaysia's China-backed East Coast Rail Link