Senator Al Franken (D-MN) has spoken out against a Google Glass app that uses facial recognition to identify strangers. Yesterday, Franken published an open letter to the makers of NameTag, an app meant to match peoples faces with photos from social media accounts or other online sources. Unlike other biometric identifiers such as iris scans and fingerprints, facial recognition is designed to operate at a distance, without the knowledge or consent of the person being identified, he wrote. Because of Googles across-the-board ban on facial recognition, NameTag isnt an officially sanctioned Google Glass app.