Petition of the day

Issues: (1) Whether, under the first-to-file bar of the False Claims Act, 31 U.S.C. § 3730(b)(5), later actions may proceed without refiling once all earlier action have been dismissed, or whether later actions must be dismissed and refiled; and (2) whether the first-to-file bar of the FCA is jurisdictional, and, if so, whether the bar applies only at the time of filing, or whether it may be lifted by amendment, supplement, or later events.