Continuous airliner crashed , Aviation security is imminent ...

Recently, MH17 ，GE222 ，AH5017，Three airliners have crashed , Many people lost their precious life .People can not help but ask why ? What should we do ? We consider it necessary to do the following :
1,Emphasis on aviation safety , Upgrade aviation communications systems and energy equipment ;
2,Establish a mature meteorological stations near the airport ,Timely reporting and feedback meteorological conditions ,Ensure safe aviation environment meteorology ;
3,In order to ensure the security of the airport ,Increase the airport perimeter security is a top priority ;
4,Strengthen the training of related staff at the airport ,Equipped with necessary high-definition monitor and security equipment . Mega pixels IP camera IP1001W RJ-45 Wifi P2P Two-way Audio IR-CUT night vision Rotation Network camera     http://www.htic-tool.com/mega-pixels-ip-camera-ip1001w-rj45-wifi-p2p-twoway-audio-ircut-night-vision-rotation-network-camera_p888.html