The Los Angeles Police Department is ordering officers to ride in pairs because of a warning that street gangs made a pact to "take out" cops after a Baltimore man was fatally injured while in custody. L.A. officials said they made the call to issue the so-called "blue alert" out of an abundance of caution, and until they can assess how serious the threat is. In a statement issued earlier Monday, embattled Baltimore police announced they had received a "credible threat" that the Black Guerrilla Family, the Bloods, the Crips and other rivals planned to target officers. "Law enforcement agencies...