Good morning, Chicago. ✶ 🔎 Below: Deep Tunnel, the city's system of tunnels and reservoirs to handle flood waters, is nearly full for the first time in its history.  🗞️ Plus: The late business and hair products pioneer George E. Johnson is remembered, Illinois' new AI guardrails and more news you need to know. 📧 Subscribe: Get our morning newsletter delivered to your inbox weekday mornings. ⏱️: An 8-minute read TODAY’S WEATHER ☀️ Sunny with a high near 84. TODAY’S TOP STORY 🔎