Do airport scanners detect silicone?

Do airport scanners detect silicone?

Added (1). Ok, I'm probably just being really paranoid.
I have some pretty bad scars that I need to get rid of as much (and as soon) as possible. I'm planning on buying some of those ScarAway silicone strips, but I'm going away for a week and will probably need to take them with me. I can't let anyone travelling with me know I have them, because no one knows about the scars.
Will the airport security detector thing find them and have someone have search my bag? Should I put them on my body or in my bag?

Is spirit airlines safe?

My dad always wants to get the cheapest price for flying, and he always uses Spirit but I've seen lots of things online that it's bad. And I'm starting to get really Really worried because I have a flight next month. Is Spirit Airlines safe? I'm extremely scared of flying with spirit… Please help I really am so scared…

I'm booked on a boeing 737 max?

I have a flight to canada from heathrow airport this sunday, and i booked to fly on a 737 max there and back, the uk airspace has banned them flying until further notice. My flight hasn't been cancelled, will they get a replacement plane?

Added (1). i'm flying with canada air