WASHINGTON - The US State Department on Friday said it was investigating the case of an Egyptian lawmaker who visited Washington for official talks despite saying he was a member of a group the United States bans as a "foreign terrorist organization."State Department spokeswoman Victoria Nuland declined to discuss specifics of the case involving Hani Nour Eldin, who the online Daily Beast reported was both a member of parliament and a self-proclaimed member of Gama'a al-Islamiyya (IG), blamed for a spate of violence in Egypt in the 1990s."Anybody issued a visa goes through a full set of screenings. Those screenings do depend however on the integrity of the information that's available to us at the time," Nuland told a news briefing in response to questions on Eldin's visit."This particular case is one that we are now looking into."