"Well DigiCash failed. Bitcoin is succeeding. That speaks of itself as to which system is better designed..."
Really, you think that success in the market is indicative of a system having a better design? You must not be paying attention to the market then, or to the forces that affect the market. Better designed products and systems fail where their poorly designed competitors succeed all the time.
"By "secure" I meant secure from governments seizing accounts, financial companies restricting transferts, etc."
That's nice, but I doubt you would use Bitcoin if there were easy double spending attacks.
I do use Bitcoin. I have been for 2+ years. I do so because I trust its design. I do not believe it is easy to double spend bitcoins. Yesterday's chain fork is an extremely rare and short-lived event.
By "secure" I meant secure from governments seizing accounts, financial companies restricting transferts, etc. Not secure from price manipulation.