This combination of undated photos shows Tamerlan Tsarnaev, 26, left, and Dzhokhar Tsarnaev, 19. The FBI says the two brothers and suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during a getaway attempt in a long night of violence that left Tamerlan dead and Dzhokhar still at large today. (AP Photo/The Lowell Sun & Robin Young)

Somebody who went to high school with Dzhokhar Tsarnaev described him as a class clown. Well, that 19-year-old class clown has somehow managed to trap 1 million people in Boston and its western suburbs in their homes as he and the police officers who think they might have him surrounded prepare for a final encounter, the outcome of which we all think we know.  Dzhokhar -- the American kids he went to school with pronounce it Ja-har -- is alone now. Unless he has hostages. His big brother, 26-year-old Tamerlan, is dead, a fate big brother must have known awaited them. He probably even welcomed it. By some accounts, he, the big brother, dragged the class clown into his huge orbit of grievance, real or perceived, about the great Satan/Kevin Cullen, Boston Globe. More here.

Question: Do you care why terrorists like the Tsarnaev brothers hate Americans?