FBI Director James B. Comey said Wednesday, speaking to a private gathering of more than 100 politicians and top law enforcement officials, ... that the federal government has no better data on police shootings than databases assembled this year by The Washington Post and the Guardian newspaper. It is unacceptable that The Washington Post and the Guardian newspaper from the U.K. are becoming the lead source of information about violent encounters between police and civilians. That is not good for anybody," he said. The FBI has for years collected information about people killed by police officers, but reporting is voluntary and only 3 percent of the nation's 18,000 police departments comply. As a result, the data is virtually useless. The Post's database, for example, shows that 758 people have been shot and killed by police so far this year - nearly double the number recorded in a single year by the FBI. The vast majority of those killed were armed with a deadly weapon. However, blacks represent a disproportionate percentage of those who were unarmed when they were killed, the database shows.