Instagram deleted this video of Russian oligarchs allegedly partying with prostitutes on a yacht

Instagram has found itself dragged into a scandal about bribery, corruption and prostitution at the highest echelons of Russian society after banning an online exposé by a leading anti-Putin politician.

The social network yanked a 25-minute "investigation" fronted by Alexei Navalny and his Progress Party after a Russian court ruled in favour of the oligarch in the video, and ordered it to be removed.

YouTube, which also hosted the video, has taken a different approach, and has yet to remove the footage from the internet.

The video itself is a lengthy dissection by Navalny of evidence which he claims is proof of bribery between rich businessmen and senior policymakers in Moscow, improbably brought to light by a Russian escort with a penchant for sharing her glamorous escapades.

Scroll down to see exactly what it's about.

Brazilian army to take control of security in Rio as violence rises

Brazilian president Michel Temer signed a decree Friday that put the military in charge of security in Rio de Janeiro, following a rise in street crime and drug gang violence.

Massed robberies and gunfights during carnival, followed by a storm on Wednesday that killed four and caused chaos, have heightened a sense that the city is slipping out of control.

“This could seem like an extreme measure but Brazil demands extreme measures,” said Temer after signing the decree. “We took the country out of the worst recession in its history. Now we are going to restore order.”

Flu vaccine works better than feared, but it's still not great

The flu vaccine is working better than doctors feared, but still is not especially effective, health officials said Thursday.

Overall, this year’s vaccine is 36 percent effective, meaning it reduces the number of doctor visits by 36 percent, the Centers for Disease Control and Prevention reports.

“Early estimates indicate that influenza vaccines have reduced the risk of medically attended influenza-related illness by about one-third in vaccinated persons so far this season,” the CDC says in its first report on how well the vaccine is working.

It’s only 25 percent effective against the most common strain circulating this year, the H3N2 strain, CDC’s Dr. Alicia Fry and colleagues found.

Scientists have found that shampoo is a source of the same dangerous form of air pollution made by cars

A new study has shown how household products such as shampoo are sources of the same air pollution as traffic fumes.
However, rather than being bad news, this is becoming apparent because of the headway countries in Europe and the US have made to reduce car pollution.
We've known for a long time that traffic fumes are very bad for our health. But according to new research, there are other sources of pollution that should also be a concern.

A new study, published in the journal Science, has found that household products such as shampoo, oven cleaner, and deodorant could all be a significant source of air pollution — the same form as that which is released by car fumes.

Parkland school shooting: Football coach Aaron Feis died shielding students

This is Aaron Feis, a Football coach at Parkland High School who stepped in front of students when the shooting began taking several bullets. He's currently in critical condition. Make him more famous than the shooter.

Aaron Feis had several titles at Marjory Stoneman Douglas High School: Football coach. Security guard. Proud alumnus.

Now, after the mass shooting at the Parkland, Florida, school, a grieving community is calling him something else: a hero.

"It is with Great sadness that our Football Family has learned about the death of Aaron Feis. He was our Assistant Football Coach and security guard," Marjory Stoneman football said on Twitter. "He selflessly shielded students from the shooter when he was shot. He died a hero and he will forever be in our hearts and memories."

Feis was one of the 17 people killed at the school on Wednesday, Broward County Sheriff Scott Israel told reporters on Thursday.

Oxfam to set up independent commission to investigate claims of sexual exploitation

Oxfam is to set up an independent commission to investigate claims of sexual exploitation.

Oxfam International executive director Winnie Byanyima promised to root out any wrongdoing at the charity and provide justice for anyone abused by its staff.

In an interview with the BBC, Ms Byanyima apologised for the scandal which has seen the charity accused of concealing findings of an inquiry into claims staff used prostitutes while delivering aid in Haiti in 2011.

Earth is currently being battered by solar storm that could hit power grids and satellites

This storm could affect satellites, power grids and some spacecraft with energetic particles. It’s being caused by a solar flare that occurred on February 12 in the sun’s atmosphere following a massive explosion.
Particles from the flare are to blame for the possible disruption. Bill Murtagh, from the National Oceanic and Atmospheric Administration, said: ‘Depending how the CME and the Earth’s magnetic field couple, those energetic particles will come flowing in, penetrating into the atmosphere and striking the atoms and molecules in our atmosphere’
 ‘Those energetic particles excite the atoms in our atmosphere [like oxygen and nitrogen], stripping electrons away from them, and that causes them to light up.’