Dear Nanog, We appreciate that your time is very precious, but we wanted to ask you for your help in answering a brief survey about a new secure routing system we have developed in a research collaboration between ETH, Princeton University, and University of Virginia. We'd like to thank those of you who have already helped us fill out the survey and provided insightful feedback. Your input is critical for helping inform our further work on this project. Here is the link to our survey, which takes about 10 minutes to complete, including watching a brief 3-minute introductory video: https://docs.google.com/forms/d/e/1FAIpQLSc4VCkqd7i88y0CbJ31B7tVXyxBlhEy_zsYZByx6tsKAE7ROg/viewform?usp=pp_url&entry.549791324=NANOG+mailing+list Our architecture, called Secure Backbone AS (SBAS), allows clients to benefit from emerging secure routing deployments like SCION by tunneling into a secure infrastructure. SBAS provides substantial routing security improvements when retrofitted to the current Internet. It also provides benefits even to non-participating networks and endpoints when communicating with an SBAS-protected entity. We currently have a functional prototype of this network using SCIONLab (for the secure backbone) and the PEERING testbed (to make outbound BGP announcements). Our ultimate aim is to develop and deploy SBAS beyond an experimental scope, and the input of network operators that would actually have to run these PoPs would greatly benefit this project and help make secure routing a reality. With kind regards, Prateek, Adrian, and Yixin