Franklin Roosevelt actually said...

Except as provided in section 2 of this order, the uniforms of male commissioned officers of the Public Health Service shall be the same as ...

Public Health Service insignia shall be substituted for SPAR insignia and headgear other than appropriate insignia of grade.

The above-named officers shall be returned to the Coast and Geodetic Survey when the present national emergency ceases to exist.

We cannot forget how Britain held the line, alone, in 1940 and 1941.