From the article:

The RMS Niagara’s journey to Canada was cut short when it was sunk by mines laid by the German naval cruiser the Orion in the Hauraki Gulf - the first act of war against New Zealand by Nazi Germany.

In case you were wondering, from wikipedia:

Niagara’s only apparent fatality was her ship’s cat, a five-year-old grey and white long-haired tom called Aussie. His mother had been Niagara’s cat before him, his father was a Persian in Vancouver and Aussie was born at Suva. Aussie was put in one of the lifeboats when Niagara was being abandoned, but he jumped back aboard ship. A few days later, residents of Horahora, Whangarei claimed that a cat answering Aussie’s description came ashore on a piece of driftwood, and that one of them had taken him in, but the cat escaped and had not been seen since.

But yes, we should probably do the survey. But we still need to somehow pay for the pre-emtive tax cuts so it’s unlikely to happen under this government.