In a False Claims Act suit brought the U.S. Government against Sprint Communications, the district court's order denying appellant's Fed. R. Civ. P. 24(a)(2) motion to intervene as of right is affirmed where: 1) although his appeal is not moot, he did not have a significantly protectable interest in the government's False Claims Act suit; and 2) his prior filing of a related, but jurisdictionally barred, qui tam action did not entitle him to any award under the False Claims Act.