Definintely, while I don't have first hand experience in the impossibility of cracking a synchronous stream cipher, I believe in the technology. Cryptography is that anomalous science where defense beats offense most of the time...
Also I didn't realize that jamming was that difficult, I thought if you were pumping out enough trons on the right freq/freqs you'd be golden. But most of my knowledges comes from wikipedia so I guess that explains it.
I imagine ECMO school would be a heck of a lot shorter if it was as simple as turning it up to 11 on whatever station your enemys radars are on.