Dangerous conditions remain at California chemical leak site, officials say

Officials say the threat of a massive explosion at the site of a chemical leak in Orange County, California, has ended, but some concerns remain. CBS News' Jonathan Vigliotti reports.

Officials say the threat of a massive explosion at the site of a chemical leak in Orange County, California, has ended, but some concerns remain. CBS News' Jonathan Vigliotti reports.

Officials say the threat of a massive explosion at the site of a chemical leak in Orange County, California, has ended, but some concerns remain. CBS News' Jonathan Vigliotti reports.