• Following Police Officer Killing, New York City Mayor Urges Bail Law Changes

  New York City Mayor Bill de Blasio called on Friday for changes to state laws that allowed a man charged with killing a police officer this week to remain on the streets even though he had a long criminal history that included drug arrests.

  

• Twenty-Five States, Business Groups Challenge Obama's Carbon Rules in Court

  Twenty-five states and several business groups on Friday launched legal challenges seeking to block the Obama administration's proposal to curb carbon dioxide emissions from power plants, the centerpiece of its high-profile climate change strategy.

  

• World's First Malaria Vaccine Delayed As World Health Organization Experts Urge Caution

  The world's first malaria vaccine is promising but should be used on a pilot basis before any wide-scale use, given its limited efficacy, World Health Organization (WHO) experts said on Friday.

  

• Texas Under Flood Watch as Hurricane Patricia to Boost Rain Fall

  The National Weather Service placed large parts of Texas that are home to more than 10 million people under a flash flood watch on Friday as storms were expected to drop as much as 15 inches of rain in some spots through the weekend.

  

• Islamic State Attacks Syrian Army Supply Route to Aleppo: Monitor

  Islamic State fighters took control of a section of road southeast of Aleppo on Friday, threatening the Syrian army's only supply route into the city, a group that monitors the civil war said.