The Islamists might be disappointed. They lost three of their "warriors" and not a single one of the infidels got killed.

The Russian security apparatus has become efficient over the years, after learning from their mistakes during the 1990s. There is still a long way to go before eradicating terrorism in the North Caucasus, but the signs are looking good.
Seems to have been a pretty limp attempt. The Russians brushed it off easily. They´re obviously prepared, what with their whacking terrorists in Syria. There´ll be more attempts at retribution for that.