I talked more and with a heightened voice. Yet the sound increased -- and what could I do?

VOA: special.2009.05.16

These concerns were heightened in June when gunmen fired automatic weapons into a mosque,killing 12 people attending evening prayers.

VOA: standard.2009.08.31

On Face the Nation, Biden said al-Qaida is well aware of the heightened security measures in place in the United States.

VOA: standard.2010.02.14

Fears over security were heightened after some news media reported that terrorist groups might target South African installations during the World Cup.

VOA: standard.2010.01.22

Israel says it will maintain heightened security in Jerusalem until the tension around the holy sites subsides.

VOA: standard.2009.10.05

Holbrooke's location in Pakistan personally coming here is a closely guarded secret, given the heightened security concerns following deadly terrorist attacks in Lahore and Peshawar,last week.

VOA: standard.2009.06.03

General McChrystal takes over at a time of heightened violence in Afghanistan.

VOA: standard.2009.06.15

His aim is to ease decades of tensions between Muslims and the United States tensions heightened by the war in Iraq and lack of progress in the Israeli-Palestinian peace process.

VOA: standard.2009.06.03

But the heightened security will only last a short time.

VOA: standard.2010.03.30

Pahvan Sukdhev says that the change called for is in scale similar to the industrial revolution, but with a heightened sense of urgency, because of the threat of climate change.

VOA: standard.2010.02.24

Survivor Sergio Bianchi says poor construction heightened the death toll.

VOA: standard.2010.04.06

Political tensions have heightened in Iraq because its newly-elected parliament is still deadlocked over a choice for a new prime minister and government, nearly five months after the parliamentary election in March.

VOA: standard.2010.08.02

Last month's murder of both the president and the army chief of staff has heightened the country's political uncertainty at a time when Luciani says the government must move quickly to protect a generation exposed to AIDS.

VOA: standard.2009.04.24

So far attacks in the U.S. - at least those that are publicly known -- have been thwarted by heightened security awareness and increased counterterrorism measures from the U.S.side, as well as by both bad luck and professional incompetence on the terrorists' part.

VOA: standard.2010.05.05