There is always the rule of "Ah, but it is not Lercio?".

More often, however, it happens to see news that take (or take over) foot in a matter of hours, bounced from one link accompanied by many different comments.
They can be hoaxes, and it is good to master some of the sources verification tool.
Nothing more needed in the world of information, from both sides: the people who make it, but also to those who read it.
Pete Brown, a researcher at Oxford, Gizmodo has compiled a list of six best practices to see if the news that you are publishing - or sharing - it's really real, or the result of yet another misunderstanding (random or voluntary).
To take just the most recent example in order of time, Brown reported the news of some of ISIS flags waved during clashes with police.
The photo was immediately related to the issue refugees in Germany: pity that the photo was of 2012, and had nothing to do with the agenda of news in recent months on migration.
Here is some useful care that can avoid the "echo the buffalo."
Search for images.
The first thing to do is to submit an image to services like Google Images and TinEye, they can easily answer the question: it is a new photo, or recycled?
In the example presented above, the verification of this type has removed any doubt, being a jerk already published three years earlier.
YouTube DataViewer.
When it happens before the nth viral video, you must be careful, because it could be a "scrape," a video downloaded from YouTube who knows when, and reloaded if necessary.
Amnesty International has created a perfect tool for the cause.
By placing the url on YouTube DataViewer, you will get the video upload information - ID code, date and time - as well as a series of thumbnails ready to be used with the reverse image verification system (step one).
So it will be easier, in the presence of different sources, find out who posted the video first.
Using thumbnails instead, you might find other versions in the clip.
Jeffrey's Exif Viewer.
The Exif information (Exanchangeable Information Files) are metadata accompanying photo, video and audio recording with digital devices.
They are very useful to understand where, when and how the files were recorded.
They are information found quietly in services like Flickr, for example, or WhatsApp.
Facebook, Instagram and Twitter, however, remove them.
Jeffrey's Exif Viewer is a reader of this information can be used both by loading the photos directly, or reference url.
Flickr provides information on Exif: Flickr file contains information on published files
weather control.
WolframAlpha is a "computational knowledge engine", and among other things, allows to check the weather conditions of a place, on such a day, at such an hour.
This may pose a further check level, when you are in front of a content that is suspected the truth.
FotoForensics.
If a photo has been changed, FotoForencics finds out.
Working sull'Error Level Analysis, is capable of identifying the areas of an image that have changed.
Again, you can upload the image or provide a URL, and the system also has useful sharing options to share what you have discovered.
Use the maps.
Street View, Google Earth and Wikimapia can be used to identify points of reference.

From Wired