Hypersonic Missiles vs ICBM’s – Which is better?

Hypersonic Missiles

The major nuclear powers have used ICBM’s as the mainstay of their defence strategy for 60 year or so and even built some form of anti-ballistic shield to protect against. But in the last decade or so a new type of hypersonic missiles have been developed that promises to make ICBM’s redundant but will they just fuel a new arms race as everyone one struggles to make them work in a reliable manner. So how do they compare to the decades-old tech of ICBM’s and are they any better?
 

Credit to : Curious Droid