add gtd to mappable data

hey, I came accross the next map [1] and found this interesting source of mappable data [2] in fact it appeared in the data blog [3] shall we add it to the current list of mappable data?

[1] http://sploid.gizmodo.com/this-world-map-was-created-by-plotting-out-each-inciden-1611226567
[2] http://www.start.umd.edu/gtd/
[3] http://www.theguardian.com/news/datablog/2013/apr/17/four-decades-us-terror-attacks-listed-since-1970