They really want you to accept UFOs.
That picture is hilarious. Ask yourself why an advanced species needs eyes so big they can see in the dark. Shouldn't a species capable of interglactic travel have advanced lighting, and have had so much time in space travel to evolve into eyes even smaller than ours?
Yup. UFOs are just the next of the scare tactics intended to manipulate the population into looking to the government to save them. Global warming, viruses, UFOs, even "Republicans"! They'll use anything that works to scare the dumber half of the population, and the woefully idealistic will think it will help them drive the World to Utopia.
In a way, its a kind of a test of humanity. Will we be intelligent enough as a species to not fall for this stuff? Or will we succumb to tyranny - maybe even to our destruction in the conflict between human nature and Utopian ideals, just as did millions under Stalin and Mao?