Liberty Maritime Corp. chief speaks before U.S. Senate Commerce subcommittee . He says U.S. vessels are at mercy of pirates around the busy Gulf of Aden . The Associated Press contributed to this report. The slain pirates were holding Capt . Richard Phillips , the hijacked Maersk Alabama captain , joined him at the hearing .
Liberty Maritime Corp. chief speaks before U.S. Senate Commerce subcommittee . He says U.S. vessels are at mercy of pirates around the busy Gulf of Aden . The Associated Press contributed to this report. Richard Phillips , the hijacked Maersk Alabama captain , joined him at the hearing .