hearingo mary barra is -- handling an issue of her own. congress now investigating its biggest recall. the latest from corvette designers. they want to map your backside. it is back to earth for american and russian astronauts. they floated into a capsule for the trip home. they have been in about 166 days. 3.5 hours later, here they are touching down in kazakhstan. rescue crews reported all three are in good shape. gentlemen, welcome home. ♪ " onhis is "lunch money bloomberg television. we are also streaming live on bloomberg.com. i am adam johnson. in motors, big news out of gm. congress is launching an investigation as to why the automaker took 10 years to recall 1.6 million faulty vehicles linked to 13 deaths. gm plans to conduct its own investigation. the lawyer who probed lehman brothers back in 2008. trafficonal highway safety administration has given them until april 3 to explain the decade-long delay. the company culture of slow information from the engineering ranks to the corner office. gm began investigating reports of faulty s