protect against their sting. officials hope to track the hornets and eradicate them before they can do damage here in the u.s. when we come back on the broadcast tonight, the plane crashing through the roof of a home. the homeowner inside. and we're tracking two new tropical threats. could they affect the u.s.? it's starting to happen every day. people are surprising themselves the moment realize they can du more with less asthma. thanks to dupixent, the add-on treatment for specific types of moderate-to-severe asthma. dupixent isn't for sudden breathing problems. it can improve lung function for better breathing in as little as 2 weeks and help prevent severe asthma attacks. it's not a steroid but can help reduce or eliminate oral steroids. including anaphylaxis. get help right away if you have rash, shortness of breath, chest pain, tingling or numbness in your limbs. tell your doctor if you have a parasitic infection and don't change or stop your asthma treatments,