PEN’s Free Expression Digest brings you a daily curated round-up of the most important free expression-related stories from around the web. Please send your feedback and suggestions to pen.webintern@gmail.com

In Turkey, 31 of 32 detained journalists released
Police raided several news bureaus in southeastern Turkey on Monday and placed dozens of press members under arrest. Those freed made the following statement: “The aim of this illegal detention is to silence free media members but free media won’t be silent.” ENGLISH BIANET

Cambodia is cracking down on Internet, mobile phone usage
The directive from police and the Ministry of Post and Telecommunications will see a crackdown on all retailers of SIM cards and Internet service providers who don’t register customers through identification documents before selling them their products. ASIAN CORRESPONDENT

Why the U.S. government is investing millions in Internet freedom technologies
The State Department is doubling down on its plan to free the Internet of censorship and promote human rights online with a $10 million investment into a new initiative called Leading Internet Freedom Technology. MOTHERBOARD

Apple says app that maps U.S. drone strikes is offensive
The company pulled a free app that catalogs and maps drone killings by the U.S. because it found its content “objectionable.” The app listed the date, location, and victims of American drone strikes, and buzzed users at each new strike. COMMON DREAMS

How pro-government forces worked to suppress Occupy Hong Kong
A recent paper by Lokman Tsui, a professor at the School of Journalism and Communication at the Chinese University of Hong Kong, offers a chilling look at how authorities in Hong Kong outdid their rivals during the 79-day Occupy Central movement that hit the city in 2014. GLOBAL VOICES ADVOCACY

Covert electronic surveillance prompts calls for transparency
Law enforcement officials across the U.S. have become enamored of the StingRay, an electronic surveillance device that can covertly track criminal suspects and is being used with little public disclosure and often under uncertain legal authority. NEW YORK TIMES

Freedom of Information progressing slowly in Southeast Asia
The public’s right to freedom of information in Southeast Asia has only improved marginally in the last decade, with most societies experiencing the tightening noose of secrecy laws or policies. Yet at the civil society level, initiatives to advocate for greater access to information have grown stronger. IFEX