The compounds are very flexible, they don't solidify, they're stable, non-flammable, non-toxic and they pose no threat to the environment.

We didn't pose any threat to Hong Kong ... We didn't bring in anything illegal. There are no grounds for the explanation of security concerns.

Hazardous materials or toxic materials are a real threat.

We need to solidify that as much as we can.

He's a good inside runner. He's a good outside runner. He's going to pose a threat. We're just going to try to contain him. That's all you can really do. He's going to make plays. We know that. We've just got to try to minimize that as best we can.

Some things are beneficial. Some pose a dire threat. We won't likely have any good options for those.