Rescue teams attempting to reach the site, discovered an unexpected secondary effect. There were subspace ruptures extending out several light years. To this day, it is impossible to create a stable warp field in that sector. It can only be traversed under sublight power. This is the danger of the Omega molecule.
Omega destroys subspace.
A chain reaction could devastate subspace throughout the quadrant. Space-faring civilization would no longer exist, and many lives would be lost in space. When Starfleet learned of this impending danger, it suppressed all knowledge of the Omega phenomenon. Only Starfleet Captains and Federation Flag Officers may view this document. Doing so locks all navigation, sensor, tactical and propulsion systems.