Ten Things You Need to Know Today: Thursday 28 May 2015

1. FIFA TURMOIL: BLATTER WON'T STAND DOWN

Embattled Fifa president Sepp Blatter has refused to step down despite the arrest of seven top officials on corruption charges and the launch of an criminal investigation into World Cup votes. David Cameron called on Blatter to quit and major sponsors - including Coca Cola, Adidas and Visa - have distanced themselves from Fifa.

Michel Platini will resign at Uefa's next congress

2. CAMERON HEADS OFF ON EU LEADER TRIP

David Cameron has started a series of visits to EU leaders, lobbying them to renegotiate the terms of the UK’s membership. Over two days, the PM will visit four European capitals: The Hague, Paris, Warsaw and Berlin. He will warn them that without reform Britain will vote to leave the EU when there is a referendum.

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Remain-voting City lobby group calls for 'dramatic Brexit U-turn'

3. MALAYSIA GRAVES: POLICE INVESTIGATED

Twelve policemen are being investigated for people-trafficking in Malaysia after mass graves were found on the border with Thailand. It is thought the dead may be Rohingya Muslims fleeing persecution in Myanmar, or economic migrants from Bangladesh. Authorities say 139 graves have been found.

4. GOOGLE CONFIRMS 'BUY' BUTTON

Google is to add a 'buy' button to its search results, allowing users to order items online without visiting another website. The new button would allow shoppers to purchase products featured in shopping ads alongside search results. The idea is likely to be a big earner for Google, which already charges retailers to appear above search results.

5. NEW HUMAN SPECIES FOUND IN ETHIOPIA

A new species of ancient human has been classified after jawbones from 3.5m years ago were unearthed in Ethiopia. The new species, Australopithecus deyiremeda, is thought to have been one of four hominids existing at the same time, suggesting our ‘family tree’ is more complex than previously thought.

New species of human 'raises more questions than it answers'

6. LABOUR OBJECTS AS HATTON TRIES TO JOIN

Labour’s general secretary is trying to block former Liverpool councillor Derek Hatton from re-joining the. A former fire-fighter, Hatton became a hate figure in the national press when Margaret Thatcher was PM and was expelled from Labour in 1986 for belonging to the party’s hard-left ‘Militant’ faction.

7. RMT CALLS TWO RAIL STRIKES IN JUNE

The RMT union has called two rail strikes after rejecting a pay offer from Network Rail. Workers will stage a 24-hour strike from 5pm on Thursday 4 June and a second 48-hour strike from 5pm on Tuesday 9 June. Strikes were called off last week after a new pay offer from Network Rail, but that has now been rejected.

8. FSA: 73% OF CHICKEN HAD CAMPYLOBACTER

A year-long Food Standards Agency study found that 73% of shop-bought chicken tested positive for food poisioning bug campylobacter. More than 4,000 samples from raw chickens in supermarkets and smaller stores and butchers were tested. The FSA said levels of contamination at many retailers have fallen since the study ended.

Campylobacter found in majority of British chicken: but what is it?

9. LIBOR TRADER OFFERED 'HUMONGOUS DEAL'

The City trader accused of Libor interest rate rigging offered a contact up to $100,000 to keep the rate "as low as possible", a jury has heard. Tom Hayes allegedly told the broker he could do him a "humongous deal". The former UBS and Citigroup trader is facing eight counts of conspiracy to defraud.

10. BRIEFING: LONDON AIRPORT EXPANSION

British business leaders have urged the new Conservative government to fast-track plans for a new runway in the southeast of England. But the group doesn't answer the big question: where should the runway be built? While many elected opponents of a new runway at Heathrow lost their seats at the general election, expanding London's biggest airport remains highly contentious.

'Third Heathrow runway is not enough,' say business leaders