The mayor's NATO point person, Lori Healey, estimates the Chicago summit cost at $55 million, much of which the federal government will likely cover. The scope of the protests is harder to predict. But a look back at recent international gatherings might provide some clues.
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Deauville, France May 2011 G8 |
Lisbon, Portugal Nov 2010 NATO |
Toronto, Canada June 2010 G20/G8 |
Strasbourg, France, and Kehl, Germany APR 2009 NATO |
London, England APR 2009 G20 |
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|---|---|---|---|---|---|
 Total cost of summit |
$85 million | N/A | $858 million | $147 million | $30 million |
 Protesters |
4,000 to 7,000 | 30,000 | Tens of thousands | 17,000 | 5,000 |
 Arrests |
100 | 42 | 1,090 | N/A | 122 |
SOURCES: NATO, The New York Times, Herald Sun, Belfast Telegraph, The Globe and Mail, Al Jazeera, Reuters, 2011 Canadian House of Commons Report, CBC News, Der Spiegel, Die Welt, BBC News