"We think the wreck site is at that depth but really don't know. Water around there varies from 5,000 to 6,000 meters. It is very, very deep.

"Am I confident we have found the site of the aircraft? I can't say. I will need to wait until I can get an assessment from my crew."

Questions:

1. Who is the US Navy’s supervisor of salvage and diving?

2. What is Ocean Shield?

3. At what speed is the pinger locator towed behind the vessel?

Answers:

1. Capt. Mark Matthews.

2. An Australian Defence Force vessel.

3. At speeds of 3.7 to 9.3 km per hour.

About the broadcaster:

Anne Ruisi is an editor at China Daily online with more than 30 years of experience as a newspaper editor and reporter. She has worked at newspapers in the U.S., including The Birmingham News in Alabama and City Newspaper of Rochester, N.Y.

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