Axios Pro Exclusive Content Photo: Kyle Grillot/Bloomberg via Getty ImagesAtticus, a stealthy stablecoin banking startup, is in advanced talks to raise new funding at a valuation of between $1.5 billion and $2 billion, Axios has learned from multiple sources.The round would be led by Palmer Luckey, the cofounder and CEO of defense-tech giant Anduril Industries.Why it matters: This highlights the growing convergence of stablecoins and traditional finance, and would be the year's first new stablec...