A two-year congressional inquiry into the Oklahoma City bombing concludes that the FBI didn't fully investigate whether other suspects may have helped Timothy McVeigh and Terry Nichols with the deadly 1995 attack, allowing questions to linger a decade later. The House International Relations investigative subcommittee [declared that] there is no conclusive evidence of a foreign connection to the attack, but that far too many unanswered questions remain. The report also sharply criticizes the FBI for failing to be curious enough to pursue credible information that foreign or U.S. citizens may have had contact with Nichols or McVeigh and could have assisted their plot. We did our best with limited resources, and I think we moved the understanding of this issue forward a couple of notches even though important questions remain unanswered," Rep. Dana Rohrabacher, R-Calif., the subcommittee chairman, said in an interview with The Associated Press. Rohrabacher's subcommittee saved its sharpest words for the Justice Department, saying officials there exhibited a mindset of thwarting congressional oversight and did not assist the investigation fully.