You have 30 minutes before a deadly cyber-virus will infect everything connected to the internet. The national security level is already high due to recent events. In this future, majority of humans are biologically connected to the web so this virus will directly harm them if delivered.
After contemplating numerous scenarios, you and your team determine shutting down the power grid is the only way to prevent this. You would attempt to blow it up yourselves, but the grids are heavily guarded and those attempts would fail.
Whats the quickest & most convincing way to get authority on the phone who would believe you and take action?