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Different couples are shown to be in a sexual relationship and lying in the same bed, but everything below their shoulders is covered by a blanket. No sex or nudity is shown on screen.
A woman says that she had been raped years before the events of the series takes place.
No Nudity!
The "no nudity" comments are not completely accurate. In episode 1, a couple is under the sheets, apparently naked, talking. Initially, little is shown, though there are brief shots showing a lot of upper-breast of the female. Then briefly one of her nipples is seen. On American broadcast TV (PBS), you can tell that it it is blurred-out, though presumably it is not blurred where less-strict rules are in place.
Moderata
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People are shot and some blood can be seen when they are hit.
Several injured people with dirty bandages can bee seen in the background.
War violence with explosions and gun shots.
Men and women are executed by firing squad.
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Words like F*** and bollocks are said many times, and several slurs aimed at the mentally ill are said to and about soldiers with ptsd.
I watched this on PBS and they cut the F-WORDS and lots of other profanities. I saw an episode on DVD and was surprised, sadly, about the profanities.
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Many characters smoke cigarettes.
Some people in the background drink alcohol.
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We see a person who has been hanged, with some bloodstains on their face implying that they may have been tortured before their execution.
Some scenes deal with veterans having anxiety attacks from ptsd.