do you remember Ustica?

http://www.artribune.com/2016/12/strage-di-ustica-libro-giovanni-gaggia-maretti-editore/?utm_source=Newsletter+Artribune&utm_campaign=abb5e0c593-&utm_medium=email&utm_term=0_dc515150dd-abb5e0c593-153827889&ct=t()&goal=0_dc515150dd-abb5e0c593-153827889