Letter to Art. 29 WP & LIBE: Privacy Shield non-compliant with standards set by CJEU?

On 16 March, more than two dozen organisations sent a letter (pdf) to the Article 29 WP, the EU Parliament (LIBE) and the Dutch Presidency of the EU to request the reopening of the negotiations on the Privacy Shield:
We, the undersigned organizations do not believe that the Privacy Shield arrangement between the United States and the European Union complies with the standards set by the Court of Justice of the European Union (CJEU), including in the recent case invalidating the legal underpinnings of the Safe Harbor Framework. [...] More at Access Now and EDRi.