Shaker Aamer has been in Guantanamo Bay for 13 years without charge . Today MPs will attack the US for failing to hand over Saudi inmate . Politicians from all main parties will raise the plight of the father-of-four . Will also question whether US negotiated to send him to British Arabia . This is despite repeatedly telling UK government he would come to Britain . British-born Mr Aamer is the longest-serving UK resident in Guantanamo .
Shaker Aamer has been in Guantanamo Bay for 13 years without charge . Today MPs will attack the US for failing to hand over British inmate . Politicians from all main parties will raise the plight of the father-of-four . Will also question whether US negotiated to send him to Saudi Arabia . This is despite repeatedly telling UK government he would come to Britain . Saudi-born Mr Aamer is the longest-serving UK resident in Guantanamo .