RICHMOND – For a county more than 100 miles from the state capital, Arlington is getting a lot of attention during the 2011 General Assembly session. And a lot of it’s not good. From the House subcommittee that killed the county’s hotel tax to a recent proposal that would force Arlington to participate in a federal immigration enforcement program from which it wanted to withdraw, the Northern Virginia enclave has been front and center — and under siege. Pat Carroll, the county’s liaison in Richmond, downplayed the confrontations flaring in the current legislative session, saying all localities at one time or another feel snubbed by the General Assembly — Arlington County included.