Judge approves plan to retrieve telegraph on Titanic that sent distress signals

Unmanned submersible will descend nearly 2.5 miles to bottom of the ocean to get radio, believed to still be near grand staircase

A federal judge in Virginia has ruled that a salvage firm can retrieve the Marconi wireless telegraph machine that broadcast distress calls from the sinking Titanic.

The order is a big win for RMS Titanic, the court-recognized salvor, or steward, of artifacts from the doomed ocean liner.