1.   Clinton did intervene to halt a strike by pilots against American Airlines in February, minutes after the walkout began.

2.   Next week, the two sides are scheduled to return to talks for the first time since the walkout began.

3.   The two sides have not held face-to-face negotiations since before the walkout began.

4.   The walkout began as Congress was considering a bill that would outlaw permanent replacement of strikers.

5.   Their four-day walkout began on the Wednesday before last Thanksgiving, the busiest travel day.

6.   Unfortunately, these intros make things a little more heartbreaking when the walkouts begin during some of the less endurable films.

7.   He added, however, that a walkout could begin before that happens.

8.   It did not say when the walkout began.

9.   The first walkouts began Friday by garbage collectors seeking a new collective wage agreement and higher wages.

10.   The separate walkouts began Thursday after negotiations with the state broke down.