The parliamentary committee's chair, Keith Vaz, said G4S needed to do more to show it is serious about making good for its mistakes.
In Pernambuco Mr Lemos is turning his mistakes to good use by advising other businessmen.
What are some mistakes that good legal advice helps small entrepreneurs avoid?
There is little room for honest mistakes or good intentions gone awry, and little sympathy for the challenges of reconciling competing public priorities.
"A good team learns from its mistakes and Pakistan will have to do that after a disappointing World Cup, " he said.
When you're in the mood it's good until someone points out the mistakes you've made.
Own them: Good employees take accountability for their mistakes.
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Whether you agree with Malcolm Gladwell that it takes 10, 000 hours of practice to reach your potential or not, there can be no doubt that it takes hard work, a lot of mistakes, and the ability to recognise and rectify those mistakes to become a good writer.
We showed that we can play good football, although we still made mistakes and we conceded goals because of these mistakes.
Common mistakes--and uncommonly good advice--for small companies doing business on the Web.
Not succumbing to malapropisms and grammatical mistakes does not make you a good public speaker.
Does the team have a culture of forgiving mistakes, or are you as good as your last mistake?
You can avoid the mistakes we made with technology and good planning.
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"Over the years all Northern Ireland sides have played at a good tempo and forcing the opposition to make mistakes but Montenegro were the brighter side, " he said.
Good for Apple for admitting and fixing its mistakes.
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"We did a lot of good things but our execution level and the mistakes that we made aren't going to allow us to win a playoff game playing like that, " said Leafs coach Randy Carlyle.
"That's a sign of a good team, when you can take advantage of mistakes, " Wells said.
We played good enough to win, but made a few mistakes in the last five minutes, and they made us pay for it.
You fall too far behind the guys like Pettitte, the good pitchers, they don't make enough mistakes where you can get back at them.
They talk about things they should not be talking about, so the competition can either leap frog them or incorporate their good ideas into their development, and avoid the mistakes made at Microsoft.
Mr Gonzi has urged voters to judge him on his good stewardship of the economy, although he has admitted mistakes.
"We played some good stuff going forward, but were punished for our mistakes, especially at their equalizer, " France coach Didier Deschamps told reporters.
It is specially good at seeing certain truths and specially liable to make certain mistakes.
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Mistakes are forgiven so long as the intentions are good.
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He wanted more "athleticism" and "creativity" in his squad and, while defending the signings as "good acquisitions", an honest and forthright admittance of making mistakes is refreshing in this day and age of footballing spin and cliches.
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It is difficult for management to admit their mistakes (they are human, and we are not good at that), and for the board to fire current management while the company is increasing its revenues and earnings.
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That was a good PR maneuver which hopefully guides future EA decisions on these sort of mistakes.
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"The performance of our car and our tire management were generally good in Canada, however our competitiveness was compromised by reliability problems and mistakes, " said Brawn.
We should set rules about technology use, make sure kids are clear about how their online actions might affect themselves or others, set good examples for them, and even let them make and learn from their mistakes.
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