Should Boston have been put in a state of lockdown on Friday as police chased down Dzhokhar Tsarnaev? Pragmatic Bruce Schneier writes on his blog: "I generally give the police a lot of tactical leeway in times like this. The very armed and very dangerous suspects warranted extraordinary treatment. They were perfectly capable of killing again, taking hostages, planting more bombs -- and we didn't know the extent of the plot or the group. That's why I didn't object to the massive police dragnet, the city-wide lock down, and so on." Schneier links to some passionate counterarguments, though. It doesn't escape the originator of a recurring movie plot terrorism contest that the Boston events of yesterday were just "the sort of thing that pretty much only happens in the movies."