French police may nab Louvre thieves but unlikely to recover their loot

* Manhunt underway for perpetrators of Louvre heist * Jewellery they stole may be fast broken down and sold * Museum thefts on the rise in France and around Europe By Gabriel Stargardter, Juliette Jabkhiro and Elissa Darwish PARIS, Oct 20 (Reuters) – Crime gangs around Europe are increasingly robbing valuable jewels and gold from cash-needy museums like the Louvre, but while law enforcement often catches the thieves, they struggle to recover the priceless goods, police and art experts say. Only a small pool of criminals would be capable of such a job as Sunday's audacious robbery in Paris and may already be known to police, the specialists say. But the objects themselves could be quickly broken down into component parts and sold on. "If I steal a Van Gogh, it's a Van Gogh. I can't dispose