[em2vn]

"This legislation, introduced by Republican Wilson (SC) would close the loophole in Federal Law which ..."exempts union-boss-orchestrated extortionate violence from prosecution when it is committed pusuant to so-called 'legitimate union objectives.'" Source:NRTW Newsletter-May 2003."
I think you would do well to examine this. There is no exemption for violent actions when committed pursuant to legitimate union activity. That statement is nothing more than right to work for less propaganda.

[donozark]

Why then are the unions fighting passage of this Act (H.R.1870)?

Have you reviewed the legislation?

Here is another brief summary from NRTW Newsletter-July 2003:

"In the 1973 U.S. v. Enmons case, the Supreme Court exempted unions from the 1946 Hobbs Anti-Extortion Act, which forbids the obstruction of interstate commerce through violence or blackmail."

"...Thanks to the Enmons loophole, however, organized labor can escape federal Hobbs Act prosecution, provided its mayhem furthers 'legitimate union objectives,' such as higher wages."

If this is mere propaganda from NRTWC, as you claim, then why did Rep. Joe Wilson (R-SC) write legislation to "...end the Enmons exemption?"