I believe the answer you are looking for is: "a violent or destructive protest." The government would be most likely to become involved in a union protest that is violent or destructive.
One reason is that the taxes were unfair. The colonists thought that they should have some say in government. Sometimes they were taxed on stuff that was so little that it shouldn't have had taxes. These are just some that I can remember. Hope this helps!
There was a need for cheaper routes along the Mediterranean and the east was becoming tumultuous.
Answer:
a. They increased public support for cuts in U.S. defense spending.
Explanation:
