Gary McKinnon's mother Janis Sharp says that her son has been suffering mental torture, while waiting to find out if he'll be extradited to the USA.
Clip here to watch a video clip of her talking to ITV news.
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In a wide-ranging Peston on Sunday interview, he said Parliament security needs reviewing and the PM's counter-terror strategy is flawed.
The terror attack carried out by Khalid Masood at Westminster that left four people dead lasted less than two minutes say police.
Two knives were found at the scene in Islington, North London, and the suspects fled on foot before being arrested.