President Barack Obama last month proposed sweeping measures on guns, including a renewed ban on assault rifles and wider background checks on buyers.

BBC: White House posts Obama shooting picture on Flickr

Weighed down by a deficit more than four times the EU's limit, Greece has initiated a number of austerity measures, including sweeping tax rises and deep cuts in public spending.

BBC: European Monetary Fund being considered by Brussels

In return for its international bailout, Greece has imposed several rounds of stringent austerity measures, including sweeping spending cuts and a series of tax hikes, in an effort to reform its economy.

NPR: Greece: Economic Recovery In Sight