Nick Clegg has invited Maurice Reeves whose Croydon furniture store was burnt down during last year's riots to the Games closing ceremony.
More than one in four young people believe that the riots seen last summer could be repeated this year, a survey has found.
The Government is to issue £100 vouchers for parenting classes in an attempt to stem 'the breakdown of family discipline'.
Tony Blair said the celebrations of Baroness Thatcher's death were in "poor taste".
Speaking to BBC Radio Ulster, he said: "Even if you disagree with someone very strongly, you can still particularly at the moment of their passing, you should show some respect."
Mr Blair was asked if he worried there would be similar celebrations when he dies.
He replied: "When you decide, you divide. I think she would be pretty philosophical about it and I hope I will be too."
Read: Margaret Thatcher's legacy.
Read: Thatcher funeral next Weds.
The former culture secretary Tessa Jowell, who is MP for the neighbouring constituency of Dulwich, has condemned the anti-Thatcher celebrations in Brixton and elsewhere in the UK as "disrepectful":
Democracy must always embrace legitimate dissent but the action in Brixton and elsewhere is disrespectful and completely out of order
– Metropolitan Police
Last night police dealt with a group of approximately 100 people in Brixton who caused low level disorder including throwing missiles at officers.
In order to protect the community and to ensure the highways remained clear extra officers were deployed.
Two women were arrested on suspicion of burglary after being found inside a shop in Brixton.
The shop front had been smashed.
This amateur footage of people celebrating Baroness Thatcher's death in Brixton has been uploaded to YouTube
This Brixton riots situation is just sad people are so stupid why can you just not stay in your house why cause a fuss and scene
So the 80s Brixton riots were caused by Maggie Thatcher's cuts, so how do the people of Brixton pay tribute? A RIOT
In Brixton, demonstrators have gathered to 'celebrate' Baroness Thatcher's death and the lettering of the Ritzy Cinema has been rearranged to say "Margret Thatchers dead".
The south London district was the scene of fierce rioting during the Thatcher years blamed on deep social divisions, racial tensions and unemployment.
In the aftermath of the 1981 Brixton riots, the prime minister was criticised for what some saw as a lack of understanding or denial of the causes of the disturbance, after comments such as:
"Nothing, but nothing, justifies what happened.
"Money cannot buy either trust or racial harmony."
Just one in 13 foreigners who took part in the riots of 2011 have been deported, it emerged today.
More than 200 foreign criminals were convicted for their part in the riots, which saw shops looted, businesses burnt to the ground and hundreds of millions of pounds of damage done.
Of the 201 cases passed to the UK Border Agency (UKBA), only 15 have been kicked out the country, showed figures released to the Daily Mail following a Freedom of Information request.
Immigration Minister Mark Harper said: "Any foreign national who abuses the privilege of coming to the UK by committing a serious offence should face the consequences.
"Many of those convicted of involvement in last summer's riots are still behind bars - that's where they belong. We are pursuing deportation in scores of cases and wherever possible, when they have paid their debt to society, we will remove them from the UK."
Illegal immigrants have injured five officers during a riot at a detention centre in Lincolnshire, according to border officials.
Up to 40 detainees were involved in the incident at Morton Hall immigration removal centre in Swinderby, Lincolnshire, which saw one detainee taken to hospital and led to 12 others being transferred to other centres.
Staff were injured on December 30, the UK Border Agency said, while up to 50 detainees were also involved in a protest on Christmas Day, in which no-one was injured.
Both incidents, at the former women's prison. were brought under control within an hour.
Morton Hall was opened as an immigration removal centre in 2011. It holds up to 392 foreign national offenders, failed asylum seekers and illegal immigrants.
In September last year, 18 asylum seekers went on hunger strike at Morton Hall because they did not want to be sent back to Afghanistan.
The army was called in to bring Sri Lanka's biggest prison under control after a bloody gunbattle broke out, leaving 27 dead and a senior police officer seriously wounded.
Violence broke out as prison guards searched the jail for drugs and illegal mobile phones. Inmates reportedly raided the prison armoury to gain access to a large amount of weapons.
Twenty six police officers have been injured during a night of riots in North Belfast.
Members of the PSNI came under attack from republicans and loyalists during violence linked to a nationalist parade through the area.
Bricks and stones were thrown at police lines as they separated the hostile factions. Three officers were taken to hospital. Police responded with water cannon.