What is Bermuda "Condemned" Marking?

This is a commercial cover from Sweden, postmarked Stockholm 9 Nov. 1944, addressed to New York.
On the back it has markings "CONDEMNED" and "RELEASED", and on the front it has a cachet "HELD BY BRITISH CENSOR/RELEASED JAN. 6, 1946.
Why would it be condemned?
Any opinions appreciated.
On the back it has markings "CONDEMNED" and "RELEASED", and on the front it has a cachet "HELD BY BRITISH CENSOR/RELEASED JAN. 6, 1946.
Why would it be condemned?
Any opinions appreciated.