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“Dismissing this statement as ‘imprecise’ is a rather unsatisfying response given the very precise lines Congress and the courts have repeatedly drawn between what is and is not permissible, even in counterterrorism cases, over the past decade,” Steve Vladeck, a national-security law professor at American University, says. “It might technically be true that the FBI has certain authorities when conducting counterterrorism investigations that the Constitution otherwise forbids, but that’s good only so far as it goes.”

The reference to law-bending was noted in a letter to FBI Director Robert Mueller from Sen. Richard Durbin that Danger Room obtained. When Danger Room asked for the original document, the FBI initially declined. On Wednesday, a Bureau spokesperson relented, but refused to say who prepared the document; how long it was in circulation; and how many FBI agents, analysts and officials received its instruction.

Truckers voted on Monday to take strike action that union officials said could deplete petrol stocks within two days, against a backdrop of tough austerity measures to tackle a record peacetime public budget gap.

Hauliers and farmers protesting high fuel taxes brought much of the country to a standstill in 2000 when they blockaded oil refineries and petrol distribution centres.

Anxious to avoid a repeat that could hit an ailing economy and would embarrass the country in the run-up to July’s Olympic Games, the government is drafting contingency plans to deploy the army on Britain’s streets for the first time in almost a decade.

This was the inspiration for start-up company Organovo as they set out to build the world’s first production 3D bio-printer.

For decades the goal of tissue engineers has been to advance beyond simple two-dimensional cell cultures to creating three-dimensional organs.

Organovo had a vision to produce a 3D bioprinter that would make this dream a reality, providing surgeons with tissue on demand and helping solve the global shortage of human organs.

Invetech partnered with Organovo to help them transform their core science into a reliable and commercially viable instrument. Within nine months this partnership had solved engineering challenges that had confounded the biomedical industry for decades to design, develop, manufacture and ship the world’s first commercial 3D bioprinter.

The printer includes two robotically controlled precision print heads: one for placing human cells, the other for placing a hydrogel, scaffold, or support matrix. One of the most complex challenges in the development of the bio-printer was to perfect a means to consistently position the cell dispensing capillary tip attached to the print head within microns. Invetech developed a computer-controlled, laser-based calibration system to achieve the required repeatability.

While the science and engineering is incredibly complex, the intuitive user interface makes operating the printer extremely simple: the operator literally draws the organ to be built on the computer screen.

Fortunately for those who like to plan ahead, the vast majority of today’s hazardous machines feature warning labels that clearly illustrate all the ways that they can maim, burn, and dismember all humans.

“Incentives have evolved over the decades to encourage some behaviors that are detrimental to good science,” says Ferric Fang, editor-in-chief of the journal Infection and Immunity, a publication of the American Society for Microbiology (ASM), who is speaking today at the meeting of the Committee of Science, Technology, and Law of the NAS along with Arturo Casadevall, editor-in-chief of mBio®, the ASM’s online, open-access journal.

In the past decade the number of retraction notices for scientific journals has increased more than 10-fold while the number of journals articles published has only increased by 44%. While retractions still represent a very small percentage of the total, the increase is still disturbing because it undermines society’s confidence in scientific results and on public policy decisions that are based on those results, says Casadevall. Some of the retractions are due to simple error but many are a result of misconduct including falsification of data and plagiarism.

Clayton Frederick Osbon, 49, is charged in U.S. district court with interfering with inflight crew members, the same charge sometimes levied against unruly passengers or those who refuse to turn off electronics or comply with other instructions.

Osbon “moved through the aircraft and was disruptive and had to be subdued and forcibly restrained from re-entering the cockpit,” the criminal complaint states.

Osbon told his co-pilot that “things don’t matter” shortly after JetBlue Flight 191 from New York departed Tuesday, according to an affidavit. Court documents say Osbon told the plane’s first officer that “we’re not going to Vegas” and began what he described as a sermon.

“The (first officer) became really worried when Osbon said `we need to take a leap of faith,”‘ according to the sworn affidavit given by an FBI agent. “Osbon started trying to correlate completely unrelated numbers like different radio frequencies, and he talked about sins in Las Vegas.”

Passengers wrestled Osbon to the ground after he left the cockpit and later sprinted down the cabin yelling and urging everyone to pray. The plane made an emergency landing in Amarillo, Texas. No one on board was seriously hurt.

Mark Sellouk, one of the passengers on that flight, was interviewed by CBS News correspondent Lee Cowan about that moment up in the air.

“I’m looking at this happening,” he said, “and [Osbon’s] getting more and more violent, and now he’s starting to say, ‘Pray to Jesus,” and he started yelling inside to the flight deck, ‘Throttle to idle, throttle to idle! Bring this plain down! Al Qaeda is here!'”

Cowan asked Sellouk what was going through his mind. “I’m thinking of my family, my kids and my wife, and I’m looking at this guy,” Sellouk said. “I’m thinking, ‘This is how it’s going to end.”

Under federal law, a conviction for interference with a flight crew or attendants can bring up to 20 years in prison. The offense is defined as assaulting or intimidating the crew, interfering with its duties or diminishes its ability to do operate the plane.

The charges came as new details emerged Wednesday about the bizarre behavior Osbon exhibited during the flight, including unnecessarily fiddling with the plane’s controls and complaining of “too much noise” into the radio monitored by air traffic controllers and other pilots, CBS News investigative producer Pat Milton reports.

A source who spoke on condition of anonymity revealed new details to Milton of what happened in the cockpit before Osbon behaved erratically and was subdued in the cabin by passengers of Flight 191 between New York and Las Vegas. Osbon was taken into FBI custody in Amarillo, Texas, after the plane made an emergency landing there.

In addition to complaining about the noise into the radio, Osbon also said to “keep the chatter down.” CBS News’ Carter Yang reports that Osbon was improperly pressing buttons on the flight panel and “speaking incoherently” in the cockpit, according to a source.

JetBlue said Wednesday that Osbon “has been removed from active duty” pending an investigation involving multiple federal and local agencies, Yang reports.

Research reveals primary school homework offers no real benefit – and only limited results in junior high school.

Only senior students in Years 11 and 12 benefit from after-school work, associate professor Richard Walker said.

“What the research shows is that, in countries where they spend more time on homework, the achievement results are lower,” Dr Walker, from Sydney University’s Education Faculty, said.

“The amount of homework is a really critical issue for kids. If they are overloaded they are not going to be happy and not going to enjoy it. There are other things kids want to do that are very valuable things for them to be doing.