You reap what you sow:
"[Anti-Gaddafi] rebels living in England have claimed the UK Government waived travel bans to let them fight Colonel Gaddafi in Libya as investigators probe the Manchester bomber's visits to Tripoli. Fighters which included Libyan exiles and British-Libyan residents have described how MI5 operated an open door policy for those willing to travel to North Africa to topple the dictator.
"It comes as Home Secretary Amber Rudd admitted Salman Abedi, who killed 22 and injured at least 119 people when he blew himself up at Manchester Arena, was known to counter-terror authorities. Those who travelled to Libya to fight alongside Islamic rebel groups have described how, even though they were subject to counter-terror orders banning them from leaving their homes because they posed a security threat, they were allowed to travel to the hostile warzone.
"When they returned to the UK, having spent months alongside groups thought by British intelligence to have links with Al-Qaeda, rebels were said to have been allowed back into the country without hesitation. Libyan officials have backed up the claims, saying the British government were 'fully aware' of young men being sent to fight, turning the North African country into an 'exporter of terror'." (Rebels 'went to Libya with MI5 blessing' amid Abedi probe, Gareth Davies, dailymail.co.uk, 25/5/17)
But who could possibly have known this at the time?
Well, Gaddafi, actually.
As he warned Tony Blair in February 2011:
"It's a jihad situation. They have arms and are terrorising people in the streets.They are armed gangs... [There are] no foreign correspondents here. We have asked all [the] world's reporters to come and see the truth... [You] can't reason with them. They keep saying Muhammed is the prophet, similar to Bin Laden. They are paving the way for him in North Africa... They want to control the Mediterranean and then they will attack Europe. [You] need to explain to the international community. Reporters can come to make sure that this is the truth. They are welcome." (Colonel Gaddafi warned Tony Blair of Islamist attacks in Europe, phone conversations reveal, Robert Mendick, telegraph.co.uk, 7/1/16)
But what would he know?