Washington, June 7 : The United States is the world’s leading jailer, according to a Human Rights Watch (HRW) report.

New York, June 7 : The New York-based Human Rights Watch (HRW) has urged the caretaker government in Bangladesh to end its political witch-hunt immediately.

Criticising the recent wave of mass, arbitrary arrests under the Emergency Power Rules, Human Rights Watch said the thousands who were detained, should be either charged on the basis of credible evidence of criminal activities or immediately released.

It said that the timing and targets of the arrests are a dead giveaway that they are politically motivated.

Washington, June 7 : US President George W.

London, June 7 : NASA’s Phoenix Mars Lander, which touched down on the surface of the Red Planet on May 26, has begin testing Martian soil for traces of water.

Washington, June 7 : Militant jihadists in the Middle East and elsewhere are inspired by their night dreams or ruya, according to a new study by a social anthropologist at Durham University.

Washington, June 7 : A new research has indicated that rising background levels of ozone in the atmosphere are a likely contributor to the global food crisis, since ozone has been shown to damage plants and reduce yields of important crop, including soybeans and wheat.

The research was conducted by William Manning of the University of Massachusetts Amherst in the US.

“Plants are much more sensitive to ozone than people, and a slight increase in exposure can have a large impact on their productivity,” said Manning.

“The new ozone standard set by the US EPA in March 2008 is based on protecting human health, and may not be strict enough to protect plants,” he added.