Tom,
The link you gave relates to "emergency" type visas, which I think are few and far between.
The biggest problem now is that "normal" visitors to the USA must complete an ESTA (Electronic System for Travel Authorisation form)
online before visiting the US.
That makes it incredibly difficult for the older generation to visit the US as many aren't computer literate - and many more wont get involved with the WWW. Apparently, Homeland Security were asked about the problem and their reply was "For those who don’t have access to the Internet, it’s best to contact a friend, family member, colleague or travel agent who is online. Any of those folks are able to fill out the ESTA form on behalf of the traveller."
Maybe Homeland Security have identified that seniors who dont like the internet are more prone to partake in terrorist activity

Previously, an I-94 (commonly thought of as the Visa Waiver form) would be completed on the plane and handed in at border control.
Now, you have to visit
HERE and complete the online forms.
It really does seem like "using a jack-hammer to crack a nut" mentality.
Nobody wants to see another 9/11 but making it increasingly difficult for the honest traveller will do nothing to improve the image of the US..
I love the USA and thoroughly enjoyed our tour over there but I have to admit that all the hassle does put me off.
Paul