What is the scope of discretion of the Attorney General under section 1255 of the Immigration and Customs Act?

Id. (emphasis added); accord Ameeriar v. INS, 438 F.2d 1028, 1032 (3d Cir.1971) (en banc) (1958 and 1960 amendments to section 1255 were "intended to increase, not decrease, the scope of the Attorney General's discretion ... [the purpose] was to 'revise section 245 * * * in such a manner as to broaden the discretionary authority of the Attorney General to adjust the status of certain aliens * * * in worthy cases ... thereby providing considerable more flexibility in the administration of the law.' " (citations and emphasis omitted).