Andra Hutchins, a Massachusetts lawyer specializing in representing students facing expulsion, says schools can be too heavy-handed in dealing with errant behavior.

WSJ: Pranks Test High Schools' Patience

Conservative groups take issue with Hagel's policy positions, but also, "They don't like the fact that he is a supporter of President Obama, " said Andra Gillespie, an associate professor of political science at Emory University in Atlanta.

CNN: STORY HIGHLIGHTS