[FITZ]

Some officials suggest that soldiers wanted the photographs as souvenirs, but some relatives said they believed that the photographs were going to be shown to other prisoners to pressure their cooperation.

Yes it is interesting --- two valid explanations on why the pictures might have been taken --- and of course the media isn't going to hold back on showing them.

[Howlin]

but some relatives said they believed that the photographs were going to be shown to other prisoners to pressure their cooperation.

This is what the families are saying: that they were "ordered/forced" to take these pictures to get the prisoners to talk.