Terra has initiated legal action against Jane Street, accusing the trading firm of insider trading activities that allegedly contributed to the collapse of Terra's stablecoin $UST and its native token $LUNA. The lawsuit claims that Jane Street engaged in manipulative trading practices that destabilized the market, leading to significant financial losses for Terra and its investors. This legal move marks a significant development in the ongoing fallout from the Terra ecosystem's collapse, which has had widespread implications across the cryptocurrency market.