little appreciated

There are significant and little appreciated differences in the trajectory of Sunni extremist terrorism and that of Shi’a extremism. <...> Fourth, while employing similar tactics and methods, Shi’a terrorist groups have shown a much greater propensity to kidnap innocents to barter, while Sunni extremists more frequently abduct to kill. Fifth, Shi’a terror groups exhibit a much higher incidence of targeted assassinations for specific political gain, rather than the high-casualty killings featured in Sunni terrorism, and particularly of the Salafi-Jihadist variant.

http://www.ciaonet.org/wps/ctc/0015637