How can I meet with people at the airport when I'm in security and they are not?

I'm flying from Salt Lake City to Melbourne Australia. I will have a three hour layover at LAX. I hope to meet my brother and sister and possibly other relatives. The problem is I will have to step out of security and then go through security a second time. I'm going to a foreign county. Is this going to be complicated? Any comments? Suggestions?

Why didn't more planes crash at Hong Kong Kai Tak airport?

It looked like a very dangerous airport with pilots having to fly close to mountains and high-rise buildings and making a sharp almost right angle turn to line with the runway manually.

Why were there so few accidents and crashes? Why didn't more planes crash into the skyscrapers like on 9/11?