Dozens of federal courts have postponed jury trials, grand juries, and other court proceedings to safeguard the health of jurors, court employees, and the public, as COVID-19 cases grow in the U.S. To maintain quick and reliable communication with jurors, most of the 94 federal court districts use an automated messaging system that can send email alerts, phone calls, and text messages informing jurors of courthouse cancellations or changes in service.