Answer:
Since Westwood's workers are not government workers, nor railroad or airline workers, nor farmers or domestic workers, they are allowed to strike by the National Labor Relations Act of 1935.
Unions are allowed to call media outlets, and they always do in order o increase public pressure against the company.
Massed picketing (forming barriers and not allowing workers to enter a factory) and sit down strikes are not legal, they are forbidden by the National Labor Relations Act.