No need. They actually tried to make contact yesterday. Well, technically about 11 hours ago. They were lead by the Biggs contingency, Jar-Jar, Bottle-Bottle, and Keg-Keg. The folks at Area 51 gave them the option of living in the waters near New Zealand, but they didn’t take that option. So, there was no choice but to wipe them out using Vogon technology. Too bad. They had their chance, and blew it.
It was all over in an hour. If you were up early, you might have noticed a few meteorites in the early morning sky.