We can not solve the worlds problems but we can darn sure stop meddling in other country's affairs unless they pose a direct threat to world peace. From all information I've seen Gaddafi did not but perhaps knew too much.

Migrants from west Africa being ‘sold in Libyan slave markets’

UN migration agency says selling of people is rife in African nation that has slid into violent chaos since overthrow of Gaddafi

https://www.theguardian.com/world/2017/apr/10/libya-public-slave-auctions-un-migration

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