You can't rely on such latency. For example,
distance from NY to London is 5570 km (3460 miles). Nothing can move faster than light, so information can't be transmitted from NY to London faster than 5570/300,000 = 18 ms. Double this for standard TCP/IP. Double this for LA -> Moscow. Get 72 ms. Quietly weep
(c).
My original example was more like a botnet being checked by nodes in the same country vs a PC in Europe with a fast lookup table being checked in America.
v0.2 available using nocoin's examples in worst case scenario...