U.S. Embassy urges officials to protect participants
Supporters seek closer ties to EU
Activist suffered concussion, facial injuries during Aug. 31 incident
Odessa event was to take place on Aug. 15
Thousands celebrate in Brazil and Israel, while Russians face arrest
Nationalists sought to disrupt Kiev event
Country is the first former Soviet republic to enact such a measure
Imagining other uses for fitness gadget
Malaysian airliner apparently shot down
Kiev police reportedly refused to protect advocates
