A protective coating of colloidal silver is painted on the inside and outside of the filter to kill bacteria.

VOA: special.2009.06.22

He was found guilty of murder. Like those found guilty of plotting to kill Abraham Lincoln, he was hanged.

VOA: special.2010.04.22

The fast was to protest the poisoning of grape workers and their children by the dangerous chemicals growers used to kill insects.

VOA: special.2009.09.06

In eighteen seventy-two, a famous American word expert decided that the time had come to kill this word.

VOA: special.2010.08.08

These include vaccination campaigns and the use of bed nets chemically treated to kill mosquitoes that spread malaria.

VOA: special.2009.09.28

Some animals such as the black rhinoceros have almost been destroyed because poachers illegally hunt and kill them.

VOA: special.2009.08.19

Most had agreed to work with Booth because they believed he planned to kidnap Lincoln, not kill him.

VOA: special.2010.01.07

But it warns that mosquitoes are becoming increasingly resistant to pesticides, the products used to kill insects.

VOA: special.2009.05.26

But when he felt the warm life under his fingers, he could not kill this beautiful thing.

VOA: special.2010.03.20

But none could prove that Confederate President Jefferson Davis or any other southern leader played a part in Booth's plot to kill Lincoln.

VOA: special.2010.01.07

But in November of seventeen-eighteen, the governor of Virginia sent soldiers to kill or capture him.

VOA: special.2011.07.26

The Stockholm Convention governs some kinds of industrial chemicals and pesticides products meant to kill insects.

VOA: special.2009.06.23

Cleveland decided the only answer was to get Congress to kill the silver purchase law.

VOA: special.2010.06.17

Most do not spread malaria. Some of the insects have disease-fighting systems that kill Plasmodium.

VOA: special.2009.12.22