In other assignments, Chance reported from Mumbai, India, where he covered the 2008 militant attacks on the city and the siege of the landmark Taj Majal Hotel.
CNN: CNN Profiles - Matthew Chance - Senior International Correspondent
The BBC's West Africa correspondent Thomas Fessy says the French offensive, called "Operation Gustav", is intended to clear the Gao region of any militants still hiding there and to prevent further attacks on the city.
There were several rocket attacks on the city last year, though no injuries were caused.
An intense investigation is under way in London following yesterday's rush-hour attacks on the city's public transport system.
"As of now our planes are preventing Gadhafi's attacks on the city, " French president Nicholas Sarkozy said after the Paris summit ended, the first national leader to make such a statement Saturday.
She was the first US diplomat killed in service since last year's attacks in the Libyan city of Benghazi.
In clearing the area so quickly, authorities acted on lessons learned from past terrorist attacks such as the Oklahoma City bombing in 1995, the Atlanta Olympics bombing in 1996 and the September 11, 2001, attacks, according to security experts.
The figures equate to three attacks on teachers in the city every week.
Some observers conjured images of Sarajevo in describing Syrian attacks on the besieged city of Homs earlier this year.
Frustrated survivors and loved ones of the dead in previous high-profile attacks, from the Oklahoma City bombing in 1995 to Sandy Hook, asked the federal government last month to come up with a new way to ensure 100 percent of donations intended for victims and families hits that mark.
Soon, the attacks were also felt in the capital city of Lima and people lived in constant fear.
The released files show that the authorities kept a tab on Pele's activities in the 1970s, including his financial records and investigating alleged attacks on his home in the city of Santos.
It equates to three attacks on teachers in the city every week.
Israeli police say more such attacks are possible in the city.
In an interview with CNN's Daryn Kagan, ICRC spokesman Roland Huguenin-Benjamin said he was "distressed and puzzled" by the "widespread attacks and looting going on" in the city.
The attacks happened within minutes of each other in the city of Torreon.
BBC: Mexican soldiers, 1 Dec 2012, Pena Nieto's inauguration
Some relatives of September 11 victims have said they support Bush's use of the imagery, as did former New York Mayor Rudy Giuliani, who led the city through the aftermath of the attacks.
The incident appeared to echo one of the city's most notorious subway attacks: the 1999 killing of Kendra Webdale, who was pushed in front of a train by an emotionally disturbed man.
Throughout the attacks, the British have tried to win over the city's population.
Kerik, 49, led the New York City Police Department through the terrorist attacks of September 11, 2001, and their aftermath.
News of the attacks spread quickly and most bars and restaurants in the city closed their doors for the night.
BBC: Mexican soldiers, 1 Dec 2012, Pena Nieto's inauguration
Kerik, 49, also led the New York City Police Department through the terrorist attacks of September 11, 2001, and their aftermath.
During his testimony, the suspect gave details of his journey from Pakistan, the attacks at a historic railway station in Mumbai and the city's Cama hospital.
French radio reported that at the time of the arrest, the five were carrying documents that led authorities to believe they were planning attacks on targets in Strasbourg, possibly the city's cathedral.
Tripoli, Libya (CNN) -- Gunmen targeted the car of the Italian consul general in Benghazi, Libya, on Saturday as he was leaving the consulate, the latest in a series of attacks targeting foreign missions and security officials in the eastern city.
The New York City Is Not For Sale ad attacks Ms. Quinn from the left, depicting her as a creature of a smoke-filled room who, among other things, supported Mayor Michael Bloomberg's effort to seek a third term and opposed until recently a requirement that employers in the city offer workers paid time off when they are sick.
There had been talk from the highway people, but there wasn't much they could do about moving a graveyard, and so our cemetery remained, a fort that withstood the city's attacks.
Our reporter says the courts are located in one of the busiest parts of the city, and were full of people when the attacks happened - Sunday is a normal working day in Somalia.
Washington will also want Pakistan to root out the Afghan Talibs who launch attacks against Afghanistan from camps in Waziristan and around the southwestern city of Quetta.
应用推荐