From Jack Shafer.

The human reflex to find cause, meaning and lessons in the detritus of a massacre – and to impose a solution on the chaos based on those findings – should be trusted only to the extent that it allows us to muddle through the confusion churned up by such a crazed act. As we recover from the initial shock, we revert to our fundamental and irresolvable arguments about freedom and individuality, which aren’t very good at explaining why people shoot or dynamite innocents – or at stopping them from doing so.

Pollsters tell us that killings like the Colorado massacre don’t seem to move the public opinion needle very much. The 1999 Columbine shootings turned support for stronger gun-control laws upward, as this Huffington Post analysis of poll data from ABC/Washington Post, Gallup, and Pew shows, but the public’s attitude soon reverted to the previous baseline and actually continued to fall for the next 11 years.

Sadly, he’s right.

Any criminal justice system worthy of the name will throw up lots of anomalies, but in the case of the death of Ian Tomlinson, the newspaper seller who died during the G20 protests in London in 2009 shortly after being struck and knocked to the ground by a police officer, Simon Harwood, the British system has apparently excelled itself.

First of all, there’s the fact that the assault on him would never have come to light if things had been left to the Metropolitan Police, which in recent years has sometimes functioned as a part-time subsidiary of News International. It was only reporting by the Guardian‘s Paul Lewis, and an American businessman’s cameraphone video of the assault, that launched the independent inquiry which eventually led to the trial of Harwood for manslaughter.

The Met’s performance in the case was truly lamentable. Tomlinson’s family were discouraged from speaking to journalists and initially prevented from seeing his body. They were not told of the three police officers who, 48 hours after Tomlinson’s death, said they had seen a colleague strike him with a baton and push him to the ground. And for five days the family were denied details of the bruises and dog bites on the dead man’s legs, not to mention the three litres of bloody fluid found in his stomach.

Then there was the conflict in pathologists’ opinions on the probable cause of Tomlinson’s death. The first pathologist opined that he had died from a heart attack. QED. But after the Guardian published the camera phone video, the Independent [sic] Police Complaints Commission (IPCC) launched a criminal inquiry and further post-mortems concluded that Tomlinson had died from internal bleeding caused by blunt force trauma to the abdomen, in association with cirrhosis of the liver. In May 2011, a inquest jury returned a verdict of unlawful killing, which then led to the prosecution of PC Harwood for manslaughter. Yesterday, he was found not guilty on a majority verdict of the jury.

So now we have two contradictory verdicts: unlawful killing; and acquittal of the only person who might have been implicated in the death.

Fair enough, you may say — though obviously very hard on the Tomlinson family. Our justice system stipulates that juries have to be convinced “beyond reasonable doubt” and members of this panel clearly were unable to convince themselves that there was an unambiguous causal connection between Harwood’s assault and Tomlinson’s death.

But then came the revelations of the information about Harwood that had been withheld from the jury. It turns out that he has had a chequered history as a police officer, including disciplinary hearings over allegations of having punched, throttled, kneed or threatened suspects while in uniform (although it should be said that only one of these complaints was upheld).

Question: would the criminal trial jury’s verdict have been different if they had known about Harwood’s background?

Answer: possibly yes, which is why so many lay people today are outraged by the acquittal. But keeping the jury in the dark was the right thing to do, given the values embodied by our justice system. Harwood was not being tried for his past, but for this particular offence. People are innocent until proven guilty, and even bad eggs can be innocent of a particular crime, no matter how heinous their backgrounds might be.

It’s an interesting case of the importance of intangible values. A justice system which convicted people on the sworn testimony of a police or Intelligence officer would doubtless be a highly efficient one. But we — rightly — value justice more highly than efficiency. And, as m’learned friends sometimes say, hard cases make bad law.

From Good Morning Silicon Valley:

A pair of surveys released today detail the latest trends in what people are doing with their iPads. The interesting bits in a nutshell: The wildly popular Apple tablets are being used more, and more often for business purposes.

The third annual iPad usage survey from Business Insider found that people are spending significantly more time on their tablets. 47 percent of those polled use their iPad between two and five hours a day, up from 41 percent last year and 38 percent in 2010, and 10 percent use it five to eight hours a day (up from 8 percent last year). Overall, 64 percent reported increasing their time on the iPad once they got past the giddy initial exploratory phase. That increased usage is coming at the expense of desktops and laptops — 47 percent now consider their iPad their primary computer, up from 29 percent in 2010. Web surfing is the most popular iPad activity (taking up 37 percent of users’ time), followed by email and social networking (21 percent). The survey found almost 60 percent of web browsing by those polled is now done away from a traditional computer, with 45 percent using their iPads the most and 14 percent using smartphones the most. People also seem to be happy with their iPads — 84 percent have no interest in a Kindle Fire or Nexus 7 tablet, and 70 percent say they wouldn’t be interested in a smaller iPad.