►Experts say more than 100,000 GPS devices are sold to individuals each year. The trackers are used by parents to monitor their teens, spouses to check a partner's whereabouts, and to keep tabs on family members with dementia. But as GPS trackers become commercially available, they are increasingly being cited in cases of criminal stalking and civil violations of privacy, The New York Times reports.
►More than 400 people were arrested on Saturday after day-long clashes between police and Occupy protestors in Oakland. Protestors broke into City Hall and tried to occupy a local YMCA. Protestors threw rocks, spray cans, pipes, and “improvised explosive devices” at police, who responded with tear gas, bean-bag rounds, and batons, the Oakland Tribune reports. “This particular faction of Occupy ... they're very violent and I'm going to be asking for a lot more mutual aid," said Oakland Mayor Jean Quan.
►Facebook is taking to the courts to fight spam on the social networking site. “Facebook and Washington State Attorney General Rob McKenna announced the latest step in an ongoing fight against spammers and scammers today: dual lawsuits against the co-owners of Adscend Media, LLC, an ad network that is alleged to develop and encourage others to spread spam through misleading and deceptive tactics,” Facebook said in a statement on Thursday. The company says Adscend Media is responsible for a massive clickjacking campaign that tricks users into giving up personal information or paying for unwanted subscription services. McKenna says the campaign netted Adscend $1.2 million each month.
►In other news, police in New Orleans increasingly rely on private security cameras to help solve crimes and have access to camera feeds remotely. ♦ A National Health Services audit uncovered “serious failings surrounding security of medicines” in British hospitals. ♦ And the creator of the world’s first commercially available jet pack wants to see it in use by first responders.