1.   Later the controller called me and said I could have my job back and the birthday off, but I chose not to return.

2.   The air traffic controller called over and over for a response.

3.   The controller called twice more, getting no response.

4.   This is tricky because controllers sometimes call on planes in flight to change their transponder settings.

5.   Air traffic controllers have called four-hour work stoppages on Sunday, Monday and Tuesday, threatening long delays in local and international flights.

6.   Four minutes after seeing the plane touch down, an air traffic controller called for help because he got no response from the crew.

7.   He said controllers can call in airstrikes precise enough to send missiles fired from Harrier jump jets through specific windows, without destroying the entire building.

8.   The air traffic controllers called the walkout to press demands for a new contract.

9.   The air traffic controllers had called the walkout to press demands for a new contract.

10.   The walkout was further easing for other public services, including mail delivery, and unionized air-traffic controllers called off a planned Friday walkout.