An Italian writer faces prosecution for saying that it would be legitimate to sabotage a high-speed train line being built between Italy and France.

I disagree with him about the train line. High-speed trains are a great thing, and when the network is built up, they replace airplanes. I hope they finish it soon, because I will use it.

Freedom of expression means the right to say things we disagree with. The prosecution of de Luca shows that Italy — like other European governments — does not respect freedom of expression. In the US, which does more or less respect that freedom, that sort of statement is not "incitement" and he could not be prosecuted for it.

Shame on you, Italy. Stop your attempts at censorship, and build the train line.

Plastic in the ocean is increasing and animals are swallowing ever more of it.

PISSI's defeat at Kobani can damage it in an important place: its image of irresistability.

Thus, even though Kobani as a piece of territory has no particular strategic significance, the defense of Kobani may have real significance.

PISSI stands for "Pseudo-Islamic State in Syria and Iraq". Since most Muslims say it does not represent Islam, why should we call it by a name that validates its claims to do so? Moreover, the name "PISSI" gives the organization the respect it deserves. I suggest you too adopt that name, and spread the word.

Boko Haram keeps winning against a badly organized Nigerian army, and has come close to capturing the area's principal city, Maiduguri.

B'Tselem suggests that Israel's leaders may have committed war crimes by establishing a policy of bombarding Palestinian civilians' homes.