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HONOLULU -- Walter Ritte has been fighting for decades to protect Native Hawaiian rights, inspiring a new generation of activists trying to stop construction of a giant telescope they see as representative of a bigger struggle. Source

The Royal Canadian Air Force says it will spend one final day searching for a missing Quebec businessman and his son before handing the case over to the provincial police. Stephane Roy and his 14-year-old son Justin were reported missing on July 11 after failing to return home from a fishing trip in Lac de la Bidiere, a remote area in the upper Laurentians regions west of La Tuque, Que. Source

London's Metropolitan Police apologised Saturday after its Twitter, emails and news pages were targeted by hackers and began pumping out a series of bizarre messages. After a series of messages late Friday that read simply "test" or seemingly random letters, the police sites began using foul language with anti-police sentiment and calling for a jailed rapper to be released. Source

BERLIN -- German Chancellor Angela Merkel has urged Europeans to confront populism, nationalism, racism and anti-Semitism as she paid tribute to the Nazi resistance in her own country. Speaking Saturday at a solemn ceremony marking the anniversary of the failed attempt to kill Nazi dictator Adolf Hitler, Merkel said the courage and sacrifice of the conspirator should serve as an example to people today. Source

Members of the Somali community in Edmonton organized a memorial Friday for the woman who dedicated her life to telling their stories. Local politicians, community leaders and high school friends were among the roughly 50 people who gathered to mourn and celebrate Hodan Nalayeh, the beloved Canadian-Somali journalist. Source

GAUHATI, India -- The death toll in monsoon flooding in South Asia has climbed past 160 as millions of people and animals continue to face the brunt in three countries, officials said Saturday. At least 90 people have died in Nepal and 62 in northeastern India's Assam state over the past week. Source

HONG KONG -- Police in Hong Kong discovered a stash of a powerful homemade explosive as the semi-autonomous Chinese city readied for another major pro-democracy protest on Sunday. Police said they found about 2 kilograms of TATP and arrested a man in a raid on a commercial building late Friday night. Source

This is an excerpt from Second Opinion, a weekly roundup of eclectic and under-the-radar health and medical science news emailed to subscribers every Saturday morning. If you haven't subscribed yet, you can do that by clicking here. Source

LONDON -- Taken on its own, Iran's seizure of a British-flagged oil tanker in the Strait of Hormuz may seem like a brazen act of aggression, a provocative poke in the nose to both Britain and its ally, the United States. Source

The death toll in monsoon flooding in South Asia has risen to 152 as millions of people and animals continue to face the brunt in three countries, officials said Saturday. At least 90 people have died in Nepal and 50 in northeastern India's Assam state over the past week. Source