US Coast Guard – The cutter Sherman is the first Coast Guard cutter to circumnavigate the world.

• Contra Costa Times: Coast Guard vessel travels the world in historic voyage

US Navy – More information has been released on an ASW sensor that uses lasers to see beneath the waves.

• Jane’s: Clouds lift over April Showers ASW pod sensors

US Navy – The latest summary on the US Navy’s low frequency active sonar work.

• Christian Science Monitor: Whales to Navy: Less noise, please