Absent jurisdiction conferred by statute, district courts lack power to consider claims. This limitation is doubly significant for suits against the federal government, which, absent express waiver, are barred by the doctrine of sovereign immunity. Kansas v. United States, 204 U.S. 331, 341, 27 S.Ct. 388, 390-91, 51 L.Ed. 510 (1907). The relevant statutory provisions governing marine casualty reporting and investigations at issue here do not provide directly for f the agency’s inquiry and challenge the final agency decision. Standard Oil, 449 U.S. at 244-45, 101 S.Ct. at 495-96. An attack on the authority of an agency to conduct an investigation does not obviate the final agency action requirement. See Aluminum Co. of Am. v. United States, 790 F.2d 938, 942 (D.C.Cir.1986) (Scalia, J.) (<HOLDING>); Ticor Title Ins. Co. v. FTC, 814 F.2d 731,
holding that chevron deference is due only when the agency acts pursuant to delegated authority and the agency action has the force of law holding that any fact that increases a sentence beyond the prescribed statutory maximum must be proven beyond a reasonable doubt to a jury holding that administrative implementation of a particular statutory provision qualifies for chevron deference when it appears that congress delegated authority to the agency generally to make rules carrying the force of law and that the agency interpretation claiming deference was promulgated in the exercise of that authority holding claim that agency action is beyond statutory authority does not make any difference for finality analysis holding that any fact that increases the penalty for a crime beyond the prescribed statutory maximum must be submitted to a jury and proved beyond a reasonable doubt