The incident set off a wave of fear and anger across the country.

VOA: special.2010.05.06

This set off a selling panic on the stock market.

VOA: special.2010.06.17

Last week, Israel's Deputy Prime Minister Moshe Ya'alon set off a storm when he described the group as a "virus."

VOA: standard.2009.08.23

They set off a string of bombs that damaged equipment in the machine room and started a fire that authorities rushed to put out.

VOA: standard.2010.07.21

The death of Habyarimana,a Hutu, set off a wave of violence against Rwanda's Tutsi minority.

VOA: standard.2009.04.10

The team of students and research volunteers set off on a three-week boat trip to examine the area.

VOA: special.2009.09.22

Stuart set off with more than a thousand men on horseback.

VOA: special.2009.09.17

The victims were mostly Shi'ite muslims, in what appears to be a bid to set off further sectarian warfare.

VOA: standard.2009.04.25

By 2012,they hope to set up a network of pick-up and drop-off locations for rented bicycles throughout New York City.

VOA: standard.2010.01.31