I think Kaku is full of CACA - and knows a lot more then he is telling. All that rhetoric about 'we are going to make contact' is getting old. I submit that 'first contact' has been established or re-established generations ago.
I hate to say it but this sounds a lil more realistic, although I still haven't drawn a conclusion as to whether the following is real or not. However, it just seems more BELIEVABLE then the whole "going to" talk... that sounds like they are preparing us for the inevitable and as history shows, the inevitable is almost always scripted or perverted by the oligarchs, monarchs, and plutocrats of our planet:
Michael Jackson was right "...the history books are all lies..."