Nos. 239, 240, and 248 Misc., in Supreme Court of United States, Oct. term, 1948, Koki Hirota v. Douglas MacArthur, et al.; Kenji Dohihara v. [samel]; Koichi Kido [et al.] v. [same], on motions for leave to file petitions for writs of habeas corpus; brief in opposition to motions.