The Second, Sixth and Ninth Circuits have put the burden on the government to prove the ground of inadmissibility. See, e.g., Matadin v. Mukasey, 546 F.3d 85 (2d Cir. 2008); Hana v. Gonzales, 400 F.3d 472, 476 (6th Cir.2005) ("Our task in this case ... is to determine whether we are compelled to conclude that, contrary to the Board's finding, the record does not contain clear, unequivocal, and convincing evidence that [the petitioner] abandoned her LPR status in the United States."); Khodagholian v. Ashcroft, 335 F.3d 1003, 1006 (9th Cir.2003).