Construction crews set off explosive charges this week to sever the cables of the Metrodome's roof in Minneapolis. The explosions were part of a gradual demolition of the Hubert H. Humphrey Metrodome, home of the Minnesota Twins from 1982 - 2008 and the Minnesota Vikings from 1982 - 2013. Last month, the stadium's famous white roof was deflated for the last time, while the support cables continued to secure it. The Metrodome will be replaced with a new one billion dollar stadium for the Vikings. Report by Mark Morris.