Why Turkey's Erdogan is blocking NATO membership for Finland and Sweden

...Erdogan’s demands mostly center on extraditing Turkish foes, such as members of the militant, terrorist-labeled Kurdistan Workers' Party (PKK), which Turkey has been fighting for 38 years, and followers of Turkish cleric Fethullah Gulen, whom he alleges was behind a 2016 coup attempt to oust him. Finland extradited two of the 10 people on Turkey’s list and is reportedly evaluating seven more, while Sweden passed a new antiterrorism law. But Turkey still isn’t satisfied and has insisted on the extradition of others for crimes, including the public criticism of Erdogan.

“To fully try to meet all of Turkey’s demands, Sweden would have to turn itself into an alternative sort of authoritarian police state,” Paul Levin, director of Stockholm University’s Institute for Turkish Studies, told Yahoo News.

Finnish analysts share the sentiment. “Most of the demands are impossible to fulfill, such as extraditing a person just because he has used a Bylock [encrypted] application or has written a Facebook comment critical of President Erdogan,” Toni Alaranta, a senior research fellow at the Finnish Institute of International Affairs, told Balkan Insight...