The press must rely on officially guided visits to glean first-hand information.

ECONOMIST: Sri Lanka's war

On Saturday, politicians and community leaders were trying to reassure residents of Tulsa's predominantly black north side that authorities had the Friday shootings under control, while at the same time asking anyone with even a scintilla of first-hand information to come forward and help them find whoever was responsible.

WSJ: Federal Authorities Join Probe of Tulsa Shootings

Constantly look for first-hand data rather than relying on anecdotal information.

FORBES: How to Develop 5 Critical Thinking Types

Starting later this year, we will openly publish for the first time a national register of risks - information that was previously held confidentially within Government - so the British public can see at first hand the challenges we face and the levels of threat we have assessed.

BBC: In full: Brown security statement