Ironically, in such cases either nation might consider the other an adversary against whom commercial enterprises should use strong cryptography. Clearly, key escrow is not a suitable compromise, since neither country would want to disclose keys to the other. Even if escrowed encryption schemes are used, there is nothing to prevent someone from using another encryption scheme first. If PFS is used, the attacker must be in control of the machine during the actual conversation. But PFS is generally incompatible with schemes involving escrow of private keys.
Cryptography is the most powerful single tool that users can use to secure the Internet.
Knowingly making that tool weaker threatens their ability to do so, and has no proven benefit. Reproduction or translation of the complete document, but not of extracts, including this notice, is freely permitted.