Clinton, while negotiating (and selling out the US to) with China, got them to agree to stop importing their firearms back around 94. They wanted "Most Favored Nation" status, and Clinton, more concerned about Americans having SKSs than Chinese human rights violations, made a deal with them.
As for spying and Israel, everyone spies on everyone. Even the US spies on their friends. If you need a reason, look at how many of our "friends" are now our enemies. Look at how our current "friends," like France, stab us in the back. Given the amount of intelligence Israel supplies the US, from groups and countries we can't get on our own, it would be very unwise to cut off their aid.
Besides, why would China buy our secrets from Israel whan they could buy them directly from Clinton? If Israel handed over every piece of information they knew about the US, it would not even come close to the damage Clinton caused.
Edited for spelling booboos.