The fire apparently destroyed some fiber optic cable and other communications lines used by the transit workers to communicate between token booths and between stations.
The projects Mr. Obama announced will include laying communications lines to homes, hospitals and schools and adding computers in libraries, community colleges and other public areas.
"Long-range penetration units" were sent to Burma to sabotage Japanese supply and communications lines.
During the Cold War the United States collected sensitive signals intelligence by tapping communications lines in Soviet territorial waters.
It is now trying to correct that lapse by escalating operations to take out supply and communications lines.
The developers plan to install communications lines capable of handling heavy Internet traffic at the fastest speeds available.
This next step would require intelligence focused on tank and aircraft movements, the placement of artillery batteries and communications lines among Syrian government forces.
Currently, only Mr Kim and a few privileged others can use the optical communications lines supplied to North Korea by China's China Telecom.
It also said it was restoring cross-border communications lines it had cut off earlier this year out of anger over joint United States-South Korean military drills.
