Exhibit 21 - Subsidiaries, Form 10-K for 2012

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Filing	Description	Date Filed	Size
4	caruso, dominic j	Apr 2, 2009	21.6 KB
4	deyo, russell c	Apr 2, 2009	26.1 KB
4	weldon, william c	Apr 2, 2009	21.7 KB
4	valeriani, nicholas j	Apr 2, 2009	22.3 KB
4	goggins, colleen a	Apr 2, 2009	21.6 KB
4	foster-cheek, kaye i	Apr 2, 2009	21.7 KB
4	satcher, david	Mar 12, 2009	19.9 KB
4	prince, charles	Mar 12, 2009	20.8 KB
4	perez, william d	Mar 12, 2009	20.4 KB
4	mullin, leo f	Mar 12, 2009	20.6 KB
4	lindquist, susan l	Mar 12, 2009	20.3 KB
4	langbo, arnold g	Mar 12, 2009	21.5 KB
4	johns, michael m e	Mar 12, 2009	20.2 KB
4	cullen, james	Mar 12, 2009	21.0 KB
4	coleman, mary sue	Mar 12, 2009	20.4 KB
DEF 14A	definitive proxy statement	Mar 11, 2009	851.1 KB
8-K	current report	Feb 27, 2009	27.7 KB
4	weldon, william c	Feb 24, 2009	26.2 KB
4	perez, william d	Feb 20, 2009	20.3 KB
10-K	annual report	Feb 20, 2009	1.2 MB
4	poon, christine a	Feb 17, 2009	22.7 KB
4	weldon, william c	Feb 17, 2009	26.8 KB
4	valeriani, nicholas j	Feb 17, 2009	26.9 KB
4	mccoy, sherilyn s	Feb 17, 2009	21.3 KB
4	goggins, colleen a	Feb 17, 2009	22.8 KB
4	foster-cheek, kaye i	Feb 17, 2009	23.0 KB
4	deyo, russell c	Feb 17, 2009	25.4 KB
4	cosgrove, stephen j	Feb 17, 2009	23.6 KB
4	casey, donald m jr.	Feb 17, 2009	23.2 KB
4	caruso, dominic j	Feb 17, 2009	23.0 KB
SC 13G/A	amended statement of beneficial ownership	Feb 17, 2009	27.8 KB
SC 13G/A	amended statement of beneficial ownership	Feb 17, 2009	29.2 KB
SC 13G/A	amended statement of beneficial ownership	Feb 17, 2009	38.0 KB
SC 13G	statement of beneficial ownership	Feb 17, 2009	14.6 KB
8-K	current report	Feb 13, 2009	92.3 KB
4	weldon, william c	Feb 11, 2009	26.7 KB
4	gorsky, alex	Feb 11, 2009	21.2 KB
4	mccoy, sherilyn s	Feb 11, 2009	22.7 KB
4	goggins, colleen a	Feb 11, 2009	23.0 KB
4	foster-cheek, kaye i	Feb 11, 2009	23.2 KB
4	deyo, russell c	Feb 11, 2009	27.3 KB
4	cosgrove, stephen j	Feb 11, 2009	26.1 KB
4	casey, donald m jr.	Feb 11, 2009	25.4 KB
4	caruso, dominic j	Feb 11, 2009	23.0 KB
4	valeriani, nicholas j	Feb 11, 2009	27.1 KB
4	perez, william d	Feb 11, 2009	20.9 KB
4	coleman, mary sue	Feb 11, 2009	20.5 KB
4	cullen, james	Feb 11, 2009	21.0 KB
4	johns, michael m e	Feb 11, 2009	20.4 KB
4	lindquist, susan l	Feb 11, 2009	20.4 KB