analyse

This ranges from conducting reconnaissance to identify vulnerable systems, to analysing code for flaws or suggesting possible passwords to break into systems.

The BBC World Service team analysed videos and photos taken by protesters and journalists on the day.

The BBC has also analysed satellite images to illustrate two of the biggest burns this year.

By analysing the size of the grooves, the scientists estimate that these icebergs could be five to tens of kilometres wide and 50-180m thick, although it's difficult to be exact.

Experts used new forensic techniques to analyse the wounds, including 3D scans which showed the animal had grabbed the man by the pelvis.