GM appeals directly to employees, riling UAW

General Motors took the unusual step Friday of appealing directly to employees in the hopes of ending a month-long strike.

In a letter, GM laid out the terms of its latest offer in a move that circumvents the United Auto Workers union's leadership - pointing to GM's frustration at a lack of progress on ending a conflict that has already cost the company more than $1 billion.

GM also urged the union to agree to around-the-clock negotiations.

In a response, the UAW fired back, releasing a video featuring its lead negotiator.

(SOUNDBITE) (ENGLISH) TERRY DITTES UAW LEAD GM NEGOTIATOR SAYING:

I want to assure you that despite that letter, your team has been working around the clock to get you a great deal... The company's strategy of releasing half truths does nothing to reach a final settlement for you and your families."

The walkout - so far - has been the longest for GM in 50 years.

And for workers on the picket line - like Ken Washington - it's coming at a great financial cost.

(SOUNDBITE) (ENGLISH) KEN WASHINGTON, STRIKING GM WORKER SAYING:

"A lot of people are hurting, A lot of families are hurting and the longer we're out, it's like a no-win situation for everyone. Even people that don't work for General Motors, The parts companies, restaurant owners, it's not a good outcome."

The automaker said its latest offer includes increased compensation through wages while preserving healthcare benefits without boosting costs workers have to pay.

...while a source told Reuters that GM beefed up the amount it plans to invest in the U.S. to about $9 billion Its previous offer was $7 billion.