Confusing boarding procedure
Pros: All the standard Star Alliance greatness.
Cons: On my return flight we were searched again in Panama City for our connection to the US, and any liquids (even though they were purchased after security screening) were thrown in the trash. I don't actually know if this is a Copa policy, or a Panamanian airport security policy, but it makes NO SENSE! All liquids sold past security have been screened. There is no reason to toss out my bottle of water that I over-paid for in the little airport convenience store.