the grounding was blamed on captain joseph kerrigan relieved of his command. but the investigation also found substandard performance from multiple crew members. the seventh fleet may not be over, lower ranking squadron commanders are response bum for monitoring conditions aboard individual ships like the mccain and fitzgerald. and may have failed to spot accidents waiting to happen. anthony. >> david martin at the poeg tonight. thank you, david. >>> the texas gulf coast is bracing for harvey, a tropical depression that is expected to strengthen before making landfall late friday. a hurricane watch is up from port mansfield to island. harvey could bring dangerous storm surge and as much as 20 inches of rain. >>> police in the dutch city of rotterdam today canceled a concert by an american band, alla-las, after getting a terror threat. they arrested the driver of a van with spanishen licse plates and gas canisters. the group has received complaints from muslims, about its name. >>> still ahead, a new study suggests there may be a health risk if you don't dream