I'd read they were backpacking around the area when she was pregnant and they were captured. If his XBIL had been held for potential terrorist activities or sympathies, the husband - and maybe wife too - might be suspected of possible sympathies, hence including that in the article. Odd there was a comment in that link that she gave birth to their 3 DCs in captivity because when he called his parents to say they'd been freed he referred to their "surviving" children, then later I think he mentioned that they'd had a DD who was killed by their captors or while in captivity, so she would've given birth to 4 DCs not 3. As for her not making eye contact, after 5 years with the Taliban perhaps she'd learnt the hard way to be utterly subservient.