The terrorists are using a Somali charm called ''Falla'' this helps them know days when to attack and also protects them from any arrests or security dragnets  
Occurred in Lamu, Kenya on July 20, 2014
Reported by john2014 via Internet on July 20, 2014 in Garsen, Kenya

This rumour is impossible to verify but probably false and is of medium priority – here's why:
No such charm is known.

This heatmap depicts the spread of rumours over time. Hotter areas of the map denote earlier sightings, while cooler areas indicate delayed dispersion.

Location Reported by Via Date
Garsen, Kenya john2014 Internet 20-Jul-2014
August 20, 2014 | 2:37 PM | Christine
Inquired with specific community ambassadors and individuals who are conversant with Somali culture and people.