Yes I read that article on Suvivalblog last week. IMO bitcoins are not a good idea for when the SHTF. They will disappear you will have nothing. Gold and Silver will always have value.
I just stopped by MickyD’s to grab a quick sandwich on the way home. In the cashier’s window was a notice to the cashiers (I had to read it reversed) telling them they were getting a lot of counterfeit bills, and to make sure the “pen” was used on ALL 5s, 10s, 20s, 50s, and 100 dollar bills. You know it’s getting bad when you have to use “the pen” on $5 bills!