Washington, Jan 15 : Hollywood actor Benicio Del Toro has likened revolutionary leader Ernesto ''Che'' Guevara to Batman.

The `The Argentine' actor, who has played the role of Guevara in director Steven Soderbergh''s four-hour epic, silenced critics of the leader by saying that the revolutionary was actually "a warrior" with a very bad reputation.

New York, Jan 15 : Planning to become the historic witness of both the swearing-in of Barack Obama and his inaugural parade? Well, then you are in for disappointment, for no matter how hard you try you won't be able to attend both the events.

The January 20 inauguration day events are expected to attract crowds of more than two million.

District of Columbia Mayor Adrian Fenty and security officials have revealed that those watching the noontime oath-taking from the National Mall will not be allowed to walk north to Pennsylvania Avenue for the 2:30 p. m. parade.

Washington , Jan 15 : A national survey conducted by Yale and George Mason universities in the Us has revealed that many Americans have already taken action to reduce their energy use and many others would do the same if they could afford to.

Roughly half of the 2,164 American adults surveyed last September and October said they had already taken important steps to make their homes more energy-efficient, and a substantial number - between 10 and 20 percent - said they planned to take action over the next year.

Washington, Jan 15 : A new research has determined that the Nazca civilization, in ancient South America, had a large collection of human heads, which came from their own people.

According to a report in Discovery News, the findings of the research are based on a recent analysis of specimens unearthed at various Andean archaeological sites.

The Nazca civilization, which flourished in Peru between the first century B. C. and the fifth century A. D., is mostly known for carving in the desert hundreds of geometric lines and images of animals and birds that are best viewed from the air.

Chicago, January 15 : While Barack Obama and his family are struggling to decide which dog to own, a dog breeder is advising them to wait for a while.

The U. S. President-elect recently revealed that his family would either own a Labradoodle or a Portuguese water dog.

His statement led to a debate whether the Obamas are ready for a new dog amid all the changes in their lives.

Dog breeders say that if the family chooses a Portuguese water dog, the animal will demand attention.

Washington, Jan 15 : Scientists have shown that Hardy's paradox, a proposal that has confounded quantum physicists for over a decade, can be confirmed and ultimately resolved, a task which had seemingly been impossible to perform.

The team of scientists included University of Toronto quantum physicists Jeff Lundeen and Aephraim Steinberg.

"For nearly a century, the widespread interpretation of quantum mechanics suggests that everything is uncertain until it is observed, and that observation inevitably alters reality," said Professor Steinberg.