If there is still no response, a distress alert will be transmitted on the emergency frequency to the nearest coastguard and nearby shipping.

BBC: Alan Rankin on his yacht Trade Winds

Despite this understanding, there is still no serious emergency response plan in place.

FORBES: Water Emergencies: Time for New Plans and Technology

" She added that she hadn't been asked yet, and her response is still "No comment.

WSJ: Caroline Kennedy returns to poetry for 10th book