At least 16 people have been killed and more than 100 injured during simultaneous twin terrorist attacks at Rome and Vienna airports. Gunmen opened fire on passengers queuing to check-in luggage at departure desks for Israel's national airline, El Al. The attacks were indiscriminate and started within minutes of each other at about 0815 GMT today. No group has yet admitted carrying out the attacks. At least 13 people were killed, three of them gunmen, after six men, described by witnesses as being of Arab origin, fired bullets at travellers waiting in the main departure hall at Rome's international airport....