[exnavy]

What about Chinese made surface to air? Do they have anything capable?

[gaucho]

What about Chinese made surface to air? Do they have anything capable?

Most "man portable" SAM's have a relatively limited range of approx 2 miles or so. TWA800 was well out of range of any man portable SAM. The US SA1 and SA2 SAMS are capable of going much further and have sophisticated guidance systems but they are huge and require a launching platform. Anything equivalent from the ground would need a vehicle capable of launching it, and such a vehicle would have attracted a lot of attention (plus there was no plume from land going up to the plane).