Aliens attack earth?

http://news.asiaone.com/News/Latest+News/Asia/Story/A1Story20101227-254977.html

A report by the Search for Extraterrestrial Intelligence (SETI) in the United States said that there are three giant spaceships which are heading towards Earth.

According to the Russian Pravda news, the SETI, a non-commercial organization said that the largest one of the three spaceships is 240 kilometers wide, and the two others are smaller.

It further stated that currently, the objects are beyond the orbit of Pluto and will reach Earth in December 2012.

Is earth under threat from external beings? Well, Russian Pravda news said that SETI, has reported that spaceships are fast closing in onto earth and will reached by December 2012, the date where many believed that the earth will fall, well, is this true? Personally i believe that aliens do exist but to me, why would they attack human if we did not disturb them? well, maybe people from top intelligence had tried communicating with aliens or tried invading other planets to try and live in them, but has risked the wrath of such aliens and thus they are out to destroy us.

Well, many people believed that the end of the world would be caused by natural disaster such as an widespread earthquake, massive tsunami , volcano eruptions or even hailstorms, but it might seems like it would be the end of us through an alien attack.