Bernie Sanders addressing crowds at Clinton rally

The video discusses the importance of developing cutting-edge infrastructure and the challenges faced in higher education due to income disparities. A proposal is introduced to make public colleges tuition-free. Secretary Clinton's views on science and social issues are highlighted, emphasizing the need for unity and social justice in America.

In what ways does the speaker suggest we could work together effectively?

What does the speaker imply about the consequences of the struggle for justice?