And just last week, he released a report that warned of possible future leaks.
First Cymru warned of disruption to bus services, particularly in parts of south Wales.
Last year a National Audit Office report warned of "major risks" associated with the planned roll-out.
That morning, weather reports warned of severe weather: high winds, low humidity and extreme fire behavior.
Caterpillar (NYSE:CAT), Intel, and Federal Express (NYSE:FDX) have already warned of a profit shortfall.
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She warned of concern that legislation could increase stigma rather than ease the problem.
Salehi warned of the possible repercussions if the government in Damascus was to fall.
Back then, President Roosevelt warned of the dangers of limitless corporate spending in our political system.
And many manufacturers have warned of worse to come unless a rate cut is forthcoming.
And she has persistently warned of the dangers growing disillusion amongst voters at the political process.
But in fact, government officials, scientists and journalists have warned of such a scenario for years.
Naysayers warned of disaster when President Reagan supported tax increases in 1982 and 1984.
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And forecasters warned of prolonged snowfalls across north east and east Scotland on Monday.
And he has also warned of the danger of "becoming slaves to league tables".
And he also warned of serious consequence if any further mission of this sort is undertaken.
Johnny Carson, then king of late-night TV, jocularly warned of an impending shortage in toilet paper.
Investors are being warned of a "bull market" that's up less than 5% since 2007.
Rangers' title rivals, Celtic, had already warned of their opposition to any extension to the season.
Eisenhower warned of the threats of the military industrial complex driving American foreign policy.
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The governor also warned of health risks to both the emergency responders and residents.
Blatter has also warned of the threat of naturalised Brazilian 'invaders' playing for other countries.
But Mr Saakashvili called the amnesty a "mass release of criminals", and warned of grave consequences.
Last week, Panasonic and Sharp announced huge losses, and warned of more to come.
The teen retailer warned of a decline in same-store sales for the rest of the year.
Last month, fire brigade unions warned of industrial action at a national rally in Glasgow.
The U.S. has warned of "consequences" if Kenyatta is to win, as have several European countries.
European leaders have warned of a difficult year ahead, as many economists predict recession in 2012.
Merseyside's chief fire officer has warned of "substantial consequences" if the service's budget is cut further.
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However, police officials on the scene warned of a possible riot among the 20, 000-strong crowd.
Mr Kim has often warned of the dangers of climate change on future growth.
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