No earth space agency has a division devoted to diverting NEOs . It is very advisable to put some of NASA,ESA's budget and found a new division. Any object like Apophis (which has a dangerous Torino number of 1) should be destroyed or diverted within the next decade before astronomers realize it is too late.

An asteroid the size of Apophis would be expected to damage at least an area the size of Los Angeles or create a moderate tsunami in the ocean.

I am surprised that NASA/ESA didn't make this a priority back in the 1970s .