Re: Roland Emmerich & Dean Devlin want to make Independence Day 2 (ID4 Especially the computer virus is something I don't think of as stupid. All modern computer technology was based on the technology found in the alien ship. That's why the aliens were able to use Earth satellites to begin with. They hacked into those satellites as well. And Goldblum found the hacking signal and was able to make sense of it. And the virus was a combined effort of Goldblum, who made that key discovery, and the area 51 scientists who had analyzed this technology for 50 years. So basically I imagine the "virus" as a reverted version of the signal hidden in the satellite communication. Plus some further technobabble to lower the shields. It's not that stupid. I believe either the extended version or the novelization goes into details about that as well. And as for the President, who used to be a combat pilot, returning to fly when they badly need pilots and are so desperate that they even recrute alcoholics... why not? A dead President can still be replaced, IF the battle was won. But at first they had to win it.