What is this from?

http://cdn-www.xda-developers.com/wp-content/uploads/2011/10/dennis_ritchie6.jpg
I see this image and variations of it when doing a search for him but I can't find the original source itself. It seems to be some sort of interview (video?) and it would be nice to see it.

>>1
https://www.google.com/search?tbs=sbi:AMhZZiuY-BX0iKYvjDjsJdvYaV7gNA7PAArQPoDUVE40rHF76MBEXXBDoKdxmJqvZ9pRLmdnm3uRHgttX9kO2sNteX1fH5l9-L08vsx_1Q0-7gWHSlPrXKdAJJ0IdWVBdfs2R8FL-_1HGCFgjC4if2vBPj7Ih2g9bNripiMD_1cN4glIrniSOTAkHbaldlTuZCtwp4f0j0f9ZqaFGOBhsmefd87PxHJRAC_1AMf25e4yGv5n4J6VFgVQ9IrEz6KZ2pZPKQFo_1I2crP5RDDWEtEFdmh8x8P9eNc_1u0RTl5YRaSZKfI5Ed1dGI18AvHCLSFvUQP3l31vptlbw5kFX0qOF1X57hiRJXHxmPvbRcdWXs6cxqwwDqpd4Yk1xsZ9yJpkZy785wG4Fazth_1b4EGBU3SSFEAIUwAlx9oHMh8n-LBOKr7aOqvESOzd7RcXYcgV6Une_1A3UnHs8O1tYH1oXxx6CYRG56g2t6YaOsIoY1Cb0RkNPcDeS37J6ZUqODdAFrw0RoMXyrSRjxdqXjL67ls4hNXQq7P3D38I03CKbhMXrTV1iHXdTTKgi18D7ieBtv8e_16f5fQGnbJ0ZbcI0--cWcQFJi-2BUx7eZTiC3uSy9uEPV8kTiqiECvsoMubpWYQWLTwRh0H-JJvBU06J5k5ckVjpi893O31ulNWAGJnPncB2bF37gnVScNQx_1PjImQGFHvYNFRtRUm1RkxuupRGhAu8KlEZvG-5_1BUfjRuej_1UfljfZPpOG4tyA21IosI-Xegfhyb-HLZUnGThkDbitRiCnp-WkAW_1rrE6MGSBZKGYVlaMFEmlHIv_1leYr_1gsnLPwx8kW1S-TPY2O7v6kVOWbioB9G7Brjhqz-QILihpUDjtLxm4RZX6lLXFBrtEuDalfmK4NS3_11x4FVMCg9UAgc8lc57e6dxbyFu4mPB9AYHst4mG4SwCnBzKSKgAis3M4V3GH3We1JiInD1ErzOJQepcfuwd8elk3DQb2pV-USpwGyPw-xE4uo5wlof5XFLgtjd1-1O1H4rdFsjo7Pf_19SZ40E3mpm6NmvCc_1b9bpk8RH7ToEYIOWq9ckdZEOH2wo3ujwLpUUhgy6595_1YrkiaWWaSq6clPQVvWvPXB6oEqXaBxYGU8vaVR9Ak9tWTI2abstVnSgd-7mt-pU0B58UdaUm5L0br4XHC5dtv7DkYvCIzLOB7zHBSQYbJJ8tZPVVmDlL4mDMC05YBWdhikrXoEPMOe4P58nbh4bqzqG91znUjdtONO_154AJz8nTDhJcrKQ5y1FTrPIf6OqtUVgSvtSTQQf6fXLIwdzggpkyoYZO1h0BUdDDS2AG6EVgWDvT0UQrYiZpBtamOBwfsNVZ5CUWuzbWrpchrxtwDu9XKs3cL8Vxe2HSbnHGoLXetrYuJ20FrTEgnADTua8Ol_16urfi80hsIh3HMMZw