Capt. Ed Nanartowich, civilian shipmaster for Military Sealift Command hospital ship USNS Comfort (T-AH 20), communicates with his crew while transiting the Panama Canal. Comfort is on a four-month humanitarian deployment to Latin America and the Caribbean to provide medical treatment to patients in a dozen countries. While deployed, Comfort is under the operational control of U.S. Naval Forces Southern Command and tactical control of Destroyer Squadron 24. U.S. Navy photo by Mass Communication Specialist 2nd Class Joshua Karsten