US Secretary of National Security:
What we know so far is that it was just a communication glitch.
We are working to solve the communication problem and there is no reason to fear.
We are taking into account the possibility of a cyber attack while investigating the outage, but we do not yet know if this was the cause.
Our priority is to restore communications, return all aircraft to the ground and then return to normal operations.
There is no reason for citizens to fear or worry about their traveling relatives.
We had to stop flights nationwide and the government is well prepared to deal with this situation.
President Trump took the lead in dealing with the crisis as soon as it happened and provided us with the resources and communications necessary to move quickly.