Premise:
"And what did he say? "
Hypothesis: What did he say?

yes

Premise:
"In addition to attacking the story's source, right-wingers attack its purveyors--Broder and Waas."
Hypothesis: The publisher of the story, along with the story's source, is being attacked by a well-organized army of right-wing supporters.

it is not possible to tell

Premise:
"Programs in each region will sign an enforceable agreement enunciating the specific activities each organization will undertake."
Hypothesis: A legal agreement between local organizations will outline the role and activity each program is responsible for.
yes