There has been a lot of news about SpaceX Starlink and its impact on optical astronomy. We have formulated an official statement (see below) that you can use if you are contacted or asked about this. If you are unsure of anything please don’t hesitate to get in touch with me through communications-team@lists.lsst.org
https://www.lsst.org/content/lsst-statement-regarding-increased-deployment-satellite-constellations