As the Cold War intensified, both the Soviet Union and the United States embarked upon efforts to rapidly develop and grow their respective nuclear arsenals. Shortly after the US launched its hydrogen bomb program in the early 1950s, the USSR followed suit and initiated their own hydrogen bomb program .
<span>In Arizona v. Evans (l995), the u.s. supreme court refused to apply the exclusionary rule because: </span> The error was made by clerical employees of the court.