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CASTE CLASHES: An ethnic Indian group demanding job quotas have begun cremating the 40 people killed by police.

CASTE CLASHES: An ethnic Indian group demanding job quotas have begun cremating the 40 people killed by police.

The Gujjars are fighting to be reclassified further down India's complex caste system to qualify for government jobs.

India's government reserves about half of all jobs for lower castes to flatten centuries-old social hierarchies. - Reuters

BRAIN DRAIN: Long-term heavy use of marijuana may cause two important brain structures to shrink, Australian researchers found.

Brain scans showed the hippocampus and amygdala were smaller in men who were heavy marijuana users. The men had smoked up to five marijuana cigarettes daily for on average 20 years. - Reuters

PIRATES BEWARE: The UN Security Council has unanimously voted to allow countries to send warships into Somalia's territorial waters to tackle pirates.

Twenty-six ships have been attacked by pirates in the waters in the past year.

Somalia has not had a functioning national government since 1991. - Reuters

DOG'S CHANCE: Dog-fighting is becoming more common in the UK as youths use the animals to try to assert their status on housing estates.

More than 350 cases were reported in 2007.

Nearly a third referred to youths or "hoodies" training their dogs to fight in the street or park. - Reuters

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