This invention was similar to text. It involved "talking" through dots and dashes *
morse code
O assembly line
steam boat and railroads
cotton gin
telephone
light bulb

b) the confederacy had to pay all union war expenses.

the quote by walter cronkite contributes to the central idea of the text by supporting the central idea. cronkite argues that what is deemed “right” for and in america may not be good for other countries. this supports the central idea of the text, that the vietnam war was unpopular in america for multiple reasons- including cronkite’s.