https://www.siliconvalley.com/2020/05/31/unrest-overshadows-peaceful-us-protests-for-another-night/ > By ASHRAF KHALIL, AARON MORRISON and TIM SULLIVAN > WASHINGTON (AP) — Tens of thousands of protesters took to the streets across America again Sunday, with peaceful demonstrations against police killings of black people overshadowed by unrest that ravaged cities from Philadelphia to Los Angeles and flared near the White House.