The real shocker this week is that classic animated movie, Justice League: The New Frontier hit number five its first week out.

ENGADGET: Nielsen VideoScan High-Def market share for week ending March 2nd, 2008

Law is the last frontier for the five.

ECONOMIST: Strength in numbers

In the last five years, Frontier's share of seats in the Denver market has more than doubled to 20%, while United's has fallen to 54% from 70%.

FORBES: Frontier Airlines Braces For Turbulence

That state is, of course, Florida, for five centuries the beckoning frontier of first European and then American yearning.

WSJ: Book Review: Finding Florida

The prominence given to mayors at the convention is also a reminder that, for all the amber waves of grain and frontier nostalgia, more than four out of five Americans today live in urban areas.

ECONOMIST: Democrats give cities their due respect

And in the past five years, maritime border crossings into the United States have become a "new frontier, " said David Shirk, a professor of political science at San Diego State University and an expert on Mexico and border security.

CNN: Mexico: Traffickers abandoning immigrants at sea