'NuBank CEO David Velez Says Priority Is Organic Growth, But Could Consider Potential Deals; NuBank Going Through FDIC, Fed Approval Process, No Time Frame Yet For U.S. Launch; NuBank To Launch High-Yield Savings Account, No Fee Credit Cards And Remittances In The U.S.; NuBank Targets Young Customers, Hispanics As Initial Audience In The U.S.' - Reuters News