and a surface vessel doing the surface search. it and a surface vessel doing the surface search.— surface search. it is standard ractice surface search. it is standard practice to — surface search. it is standard practice to bang _ surface search. it is standard practice to bang on _ surface search. it is standard practice to bang on the - surface search. it is standard practice to bang on the top i surface search. it is standard | practice to bang on the top of surface search. it is standard - practice to bang on the top of the hull at the top of the hour. was any kind of pattern detected? we hull at the top of the hour. was any kind of pattern detected?— kind of pattern detected? we are workin: kind of pattern detected? we are working closely _ kind of pattern detected? we are working closely with _ kind of pattern detected? we are working closely with leading - working closely with leading acoustic experts in the us navy and the canadian navy and i have integrated a uk submariner into my command in boston thanks to the support from the uk council general in boston. to make sure that we have the expertise that we need to understand what that noise signature is and what it is telling us. while the analysis is going on, we are not leading to a target the —— leading