From the Huffington Post:
On Wednesday, Sen. Barbara Boxer (D-Calif.) and Rep. Peter DeFazio (D-Ore.) introduced bills to the Senate and House of Representatives that would require food manufacturers to clearly label any product containing genetically engineered ingredients -- or risk having that product classified "misbranded" by the FDA.
Boxer and DeFazio have both previously sponsored bills that would have mandated GMO labeling -- Boxer in 2000 and DeFazio on numerous occasions in concert with former Rep. Dennis Kucinich (D-Ohio). But the new "Genetically Engineered Food Right-To-Know Act" is the first genetically modified organism (GMO) labeling bill to be introduced with both bicameral and bipartisan support. Its nine co-sponsors in the Senate include Alaska Republican Sen. Lisa Murkowski, while Rep. Don Young, also a Republican from Alaska, is among its 22 cosponsors in the House.
I'm sure I'll have more to say if this heats up.