Identify two central ideas in the article, "New York School Bus Strike: Sign of National Pressure on Unions". For each central idea, cite at least one example of evidence that develops the central idea over the course of the article. Use paragraph numbers to cite your evidence.

Central Idea 1: The New York School Bus Strike is a sign of national pressure on unions.

Evidence:
- Paragraph 1: The opening paragraph states that the New York School Bus Strike is not an isolated event, but rather part of a larger trend of union strife and pressure across the nation.
- Paragraph 4: The article discusses the recent wave of teacher strikes across the country and notes that the issues and motivations behind these strikes are similar to those of the NYC bus drivers.

Central Idea 2: The strike highlights the challenges facing workers in an increasingly uneven economy.

Evidence:
- Paragraph 7: The article notes that school bus drivers are often paid low wages and receive limited benefits and job security.
- Paragraph 9: The article cites the increasing income inequality in America and notes that workers like school bus drivers are particularly vulnerable to economic instability.