Will China's exports hit the same barrier as a result of weakening competitiveness, or rising protectionism?

ECONOMIST: China's export prospects

Technology can be a great barrier to throw in front of competitors, assuming that we have surmounted the same barrier ourselves.

FORBES: Avoiding Growth That Leaves You Broke (Part 3): Calculating the Odds of Successful Execution

"New York has finally torn down the barrier that prevented same-sex couples from exercising the freedom to marry and from receiving the fundamental protections that so many couples and families take for granted, " Mr Cuomo said in a statement.

BBC: New York state approves gay marriage