The chances of the US government arresting him is very slim, he could be anywhere. If nothing else, if you have the right conscious and want to do the right thing, you can always contact your local Maoist/YCL leader. Let them kidnap and extort his family, we'll see how he feel about that. Maybe the rumor has already spread in Nepal, they might have already done it. Who knows what happens in Nepal these days.He will come out of the hiding, only that way, just like in a Hindi movie scene....he'll be doing the slow motion running towards his mother saying "Maaaaaaa" .