Egypt convicts Mada Masr editor, detains journalist in press crackdown

• Egypt has convicted Mada Masr editor in a press crackdown.
• Journalist Lina Attalah was detained after a court ordered Mada Masr's closure.
• Amnesty International described the verdict as a 'crushing blow to press freedom'.
• Rights groups have noted a sharp escalation in Cairo's crackdown on press freedom.
• Egypt has been one of the world's leading jailers of journalists since 2013.