He touched a mechanical toggle on the ruggedized Panasonic Toughbook:
CLACK.
A high-resolution, four-thousand-pixel satellite LiDAR survey resolved across the dual displays.
The screen illuminated a subterranean topographical cross-section of the District of Columbia, penetrating one hundred and forty feet beneath the foundations of One First Street Northeast.
Red vector lines pulsed through the pre-Cambrian crystalline schist and reinforced granite bedrock, tracing an unbroken, twenty-foot-wide reinforced concrete-and-titanium artery running from the deep command bunkers beneath the Pentagon straight under the National Mall into the subterranean foundations of the Supreme Court of the United States:
`INFRASTRUCTURE PROFILE: CONDUIT TEN // THE CAPITAL COMMAND SPUR`
`BUILT: 1944 // US NAVY CORPS OF ENGINEERS & NAVAL FOUNDRY`
`ORIGINAL RECORDED MASTER SURVEYOR: CWO ARTHUR MERCER SENIOR`
`MASTER CHANCERY AUDITOR: COLONEL ELENA ELEANOR MERCER`
`PURPOSE: HARDENED ANALOG RETALIATORY CIPHER CONDUIT // NUCLEAR TRIAD CONTINUITY`
`SURFACE ANCHOR: THE WEST MARBLE SUB-BASEMENT // ONE FIRST STREET NE`
`LEGAL DEED OF RECORD: THE ARTHUR MERCER SOVEREIGN LINEAL CHARTER (1944)`
`CUSTODIAN OF RECORD: COLONEL ELENA ELEANOR MERCER (FEE SIMPLE ABSOLUTE)`
`BENEFICIARY OF RECORD: ROSE ELEANOR MERCER (DIRECT LINEAL HEIR IN PERPETUITY)`
“Conduit Ten is not an auxiliary municipal utility tunnel, Elena,” Vice Admiral David Mercer explained, his four silver stars catching the amber cabin downlights as he leaned forward, resting his calloused forearms against the table:
