Leiden University's computer algorithm spots ELEVEN asteroids that could hit Earth

Why are we worrying so much abut the Global Warming Hoax?
Did we not have recently a close encounter with an object hurtling towards earth from space? When was the last time a large and dangerous object hit earth? 
Perhaps, the Global Warming Hoax is part of a deliberate distraction from the real threats our planet is facing?

The Tunguska event of 1908 only hit remote Siberia and the object was not larger than an estimated 50-80 (50-190) meters.

"Scientists spot ELEVEN asteroids that could hit Earth triggering 'unprecedented devastation' - but were 'MISSED by NASA software'
Researchers used a supercomputer to model the solar system over 10,000 years
Within this model, they next simulated asteroids that would eventually hit Earth
The library of fake hazards was used to train an algorithm to spot real ones
This software — dubbed HOI — is capable of being run on just a simple laptop
The new hazardous asteroids it flagged won't get close to Earth until 2131–2923"

How many asteroids does this latest software miss?

Leiden University's computer algorithm spots ELEVEN asteroids that could hit Earth | Daily Mail Online