UP: Concern about Internet radicalization.

DOWN: Conspiracy theories about the U.S. government.

Boston police at Watertown location. (Matt Rourke/Associated Press)

UP: “Today” show host Savannah Guthrie.

DOWN: Matt Lauer.

UP: Pete Williams.

DOWN: CNN’s Boston sources.

UP: Getting it right.

DOWN: Getting it first.

UP: Experts in Chechnya.

DOWN: The Sochi Olympics.

UP: Boston Globe.

DOWN: New York Post.

UP: Citizen-police cooperation.

DOWN: Tin-foil hat theories about the Boston Marathon bombers.