by Daniel Leussink TOKYO, Japan (AFP) —  Asian markets broadly retreated Wednesday as dealers remained cautious, with airlines taking a hit in the aftermath of the deadly Brussels bombings. The losses tracked a sell-off in tourism-related stocks in the United States and Europe following Tuesday’s carnage in Belgium. Explosions in the Brussels subway and Zaventem airport just outside the Belgian capital, claimed by the Islamic State group, left around 35 dead and more than 200 injured. […]