London day trader Navinder Sarao has been formally indicted by a U.S. federal grand jury on charges of market manipulation that prosecutors say helped contribute to the 2010 "flash crash," according to a Sept. 2 court filing made public on Thursday.
U.S. prosecutors and some federal law enforcement agencies will need to obtain a search warrant to use devices that track cellphone locations, under a policy announced by the U.S. Justice Department on Thursday.
Saudi King Salman will meet with U.S. President Barack Obama in Washington on Friday to seek more support in countering Iran, as the Obama administration aims to use the visit to shore up relations after a period of tensions.