The flight of suspected Chinese surveillance balloons has shown that Japan and Taiwan need to share "critical" intelligence about potential common aerial threats, a senior defence policymaker for Japan’s ruling Liberal Democratic Party said. "We don’t have those bilateral relations with Taiwan, so we don’t cooperate on that, but Japan’s government will have to consider what it does next," Itsunori Onodera, a former defence minister and an influential lawmaker in the ruling party, said in an interview.