Japanese Hospital Ship Captured

The US Navy captured a Japanese hospital ship carrying Red Cross insignia. Upon inspection, they found ammunition disguised as Red Cross supplies and 1500 healthy Japanese individuals, some with fake bandages. This confirmed suspicions that Japanese hospital ships were transporting supplies for military forces. The Red Cross insignia was used as a cover for these activities, leading to a swift response from the crew to address the situation at prisoner of war camps.

What insignia did the Japanese hospital ship carry?

What was discovered aboard the Japanese hospital ship during the search?

How many healthy individuals were reported to be aboard the ship?

What was the long suspected fact about Japanese hospital ships?

What does the phrase 'Red Cross was the double cross' imply in this context?