Remember when the Moroccan magazine Nichane got in trouble for publishing an issue full of Moroccan jokes? They were charged with insulting Islam, even though most people in the country knew the jokes. They got off easy, but according to Khatry Beirouk of Western Sahara Online, the Western Sahara might've been why they got in trouble.
Apparently, there's a slogan about Morocco that goes "From Tangiers to Lagwira." Tangiers is in the north of Morocco, while Lagwira is a city in Western Sahara's south. When Moroccans say "Morocco: From Tangiers to Lagwira" they mean Western Sahara belongs to Morocco.
But here's the rub: Lagwira is outside the Berm, and outside of Moroccan control. The Moroccan government doesn't want this to be widely known, but the editors of Nichane knew better. They went to a government office and asked for a copy of the Lagwira phone book. Since they couldn't give them a phone book, they gave them a lawsuit, instead.
Update: Commenter Larbi Mansour for telling me Tangiers is the first city in the slogan. Thanks, Larbi.