Imagine this: you’re standing at the base of Chicago’s most iconic skyscraper, the Willis Tower, when you suddenly look up and see the unimaginable. Flames tearing through the upper floors, smoke rising in thick waves that blot out the sky. Ash drifts down like dark snow, and every few moments you hear the snap of glass shattering, echoing across the street. The crowd around you reacts in a thousand different ways — some frozen in disbelief, others shouting, others pulling out their phones just