TV Guide Summary for Episode 4

From TV Guide:
"As Margaret testifies before a Senate Comittee on the NASA leak (and many other staffers receive subpoenas), a Palastinian leader backed by the U.S. is assasinated and Bartlet is determined to attend the funeral, despite security concerns. Meanwhile, Santos gives a flip answer on intelligent design, and the resulting firestorm bothers Josh more than it does either Lou or Santos."

Major characters listed in the credits are Bradley Whitford, Richard Schiff, Martin Sheen, John Spencer, Allison Janney, Dule Hill, Jimmy Smits and Janeane Garofalo.